Fermium is a member of the actinide series. For example, in a sodium atom, there are 11 electrons and 11 protons. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. The chemical symbol for Vanadium is V. Vanadium is a hard, silvery grey, ductile, and malleable transition metal. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. Titanium is a chemical element with atomic number 22 which means there are 22 protons and 22 electrons in the atomic structure. Thorium is moderately hard, malleable, and has a high melting point. Pause the simulation immediately after the decay occurs. The chemical symbol for Phosphorus is P. As an element, phosphorus exists in two major forms—white phosphorus and red phosphorus—but because it is highly reactive, phosphorus is never found as a free element on Earth. The energy of an electron in a hydrogen atom. Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. The chemical symbol for Astatine is At. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. Atomic hydrogen irradiation has also been used during growth of GaAs on Si substrates to achieve lower defect densities. Platinum is one of the least reactive metals. The metal is found in the Earth’s crust in the pure, free elemental form (“native silver”), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. If you want to get in touch with us, please do not hesitate to contact us via e-mail: Discoverer: Ramsey, Sir William and Cleve, Per Teodor. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. Its one of the main compounds of water and of all organic matter, and its widely spread not only in The Earth but also in the entire Universe. They share new crossword puzzle for newspaper and mobile apps everyday. Those elements which have the same atomic number but a different mass number are called isotopes. By mass, aluminium makes up about 8% of the Earth’s crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. See also: Atomic Number – Does it conserve in a nuclear reaction? Hydrogen has an atomic number of 1 and atomic mass of 1.007825g.mol-1. The name of the gas is formed from two Greek words, meaning water and forming, so this is the element which creates water. Boron is a chemical element with atomic number 5 which means there are 5 protons and 5 electrons in the atomic structure. Actinium is a chemical element with atomic number 89 which means there are 89 protons and 89 electrons in the atomic structure. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Next on the table is helium, whose atoms have two protons in the nucleus. We found 1 possible solution for the Atomic number of hydrogen crossword clue: POSSIBLE ANSWER: ONE On this page you will find the solution to Atomic number of hydrogen crossword clue. A major development was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. A hydrogen like atom (atomic number Z) is in a higher excited state of quantam number n. This excited atom can make a transition to the first excited state by emitting a photon of energy 27.2eV. Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. Lawrencium is the final member of the actinide series. 1) You may use almost everything for non-commercial and educational use. Copper is a chemical element with atomic number 29 which means there are 29 protons and 29 electrons in the atomic structure. The chemical symbol for Mendelevium is Md. The chemical symbol for Radon is Rn. The number of protons and the number of neutrons together refers to the mass number of a chemical element. Bismuth is a pentavalent post-transition metal and one of the pnictogens, chemically resembles its lighter homologs arsenic and antimony. You can play the mini crossword first since it is easier to solve and use it as a brain training before starting the full NYT Crossword with more than 70 clues per day. Chlorine is a yellow-green gas at room temperature. Calculate the number of protons, neutrons and electrons it contains. It is the fourth most common element in the Earth’s crust. The boiling point of hydrogen is 20,268 degrees Kelvin or -251,882 degrees Celsius or degrees Celsius. Xenon is a chemical element with atomic number 54 which means there are 54 protons and 54 electrons in the atomic structure. What are the particles that are emitted from the nucleus? Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. The chemical symbol for Tungsten is W. Tungsten is a rare metal found naturally on Earth almost exclusively in chemical compounds. Hydrogen is a chemical element with symbol H and atomic number 1. Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. This clue was last seen on New York Times Mini Crossword October 15 2020 Answers In case the clue doesn’t fit or there’s something […] The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Hydrogen (H), for example , consist of one electron and one proton. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. The chemical symbol for Silver is Ag. It is by mass the most common element on Earth, forming much of Earth’s outer and inner core. The information contained in this website is for general information purposes only. Tungsten is a chemical element with atomic number 74 which means there are 74 protons and 74 electrons in the atomic structure. Gold is a chemical element with atomic number 79 which means there are 79 protons and 79 electrons in the atomic structure. Ruthenium is a chemical element with atomic number 44 which means there are 44 protons and 44 electrons in the atomic structure. Radon is a radioactive, colorless, odorless, tasteless noble gas. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. The chemical symbol for Neon is Ne. The chemical symbol for Molybdenum is Mo. The chemical symbol for Manganese is Mn. al. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. If necessary, click on Reset Nucleus to see the simulation again. Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. Gadolinium is a chemical element with atomic number 64 which means there are 64 protons and 64 electrons in the atomic structure. Carbon is one of the few elements known since antiquity. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. Thorium is a naturally-occurring element and it is estimated to be about three times more abundant than uranium. Its extreme rarity in the Earth’s crust, comparable to that of platinum. The chemical symbol for Berkelium is Bk. Arsenic is a metalloid. The orientation of an orbital in space. Here are basic facts about the first element in the periodic table, hydrogen. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. The chemical symbol for Polonium is Po. Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. Lead is soft and malleable, and has a relatively low melting point. The chemical symbol for Zirconium is Zr. It has the lowest density (0.0899*10-3 g.cm-3 at 20 °C) as compared to all other gases. We found 1 possible solution for the Atomic number of hydrogen crossword clue: POSSIBLE ANSWER: ONE On this page you will find the solution to Atomic number of hydrogen crossword clue. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. Atomic Number of Elements. You can easily improve your search by specifying the number of letters in the answer. The chemical symbol for Cadmium is Cd. Its atomic number is 1 and its atomic weight 1,00797 g/mol. The Cookies Statement is part of our Privacy Policy. b. First element in the periodic table. Total number of protons in the nucleus is called the … Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Cerium is the second element in the lanthanide series. Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. For example, protium, deuterium, and tritium are three isotopes of H which all have Z= 1 Europium is a moderately hard, silvery metal which readily oxidizes in air and water. The nucleus is composed of protons and neutrons. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins. The energy of an electron in a hydrogen atom. 2) You may not distribute or commercially exploit the content, especially on another website. 6.4: Hydrogen Atomic Orbitals Depend upon Three Quantum Numbers Last updated; Save as PDF Page ID 210826; Radial Part of the Wavefunction; The Three Quantum Numbers ; Contributors; The solutions to the hydrogen atom Schrödinger equation discussed previously are functions that are products of a spherical harmonic function and a radial function. Zirconium is widely used as a cladding for nuclear reactor fuels. Uranium is a silvery-white metal in the actinide series of the periodic table. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. The chemical symbol for Hydrogen is H . The wavefunctions for the hydrogen atom depend upon the three variables r, θ, and φ and the three quantum numbers n, ℓ, and mℓ. Atomic weight of Hydrogen is 1.008 u or g/mol. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. www.nuclear-power.net. 15. In the periodic table, the elements are listed in order of increasing atomic number Z. The chemical symbol for Boron is B. Very soft and malleable, indium has a melting point higher than sodium and gallium, but lower than lithium and tin. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. The chemical symbol for Americium is Am. Naturally occurring hydrogen contains about 99.985% of protium, 0.014% of deuterium and 0.001 % of tritium. It is fairly soft and slowly tarnishes in air. Thallium is a chemical element with atomic number 81 which means there are 81 protons and 81 electrons in the atomic structure. The atomic number or proton number (symbol Z) of a chemical element is the number of protons (and mass number is the sum of protons and neutrons) found in the nucleus of every atom of that element. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. Discoverer: Corson, Dale R. and Mackenzie, K. R. The actinide or actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. Like all elements with atomic number over 100, lawrencium can only be produced in particle accelerators by bombarding lighter elements with charged particles. This fact has key implications for the building up of the periodic table of elements. Hydrogen, at the upper left of the table, has an atomic number of 1. Hydrogen is a chemical element with symbol H and atomic number 1. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. The atoms of H isotopes exhibit three different mass numbers 1, 2 and 3. It’s one of the main compounds of water and of all organic matter, and it’s widely spread not only in The Earth but also in the entire Universe. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). But its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. The chemical symbol for Niobium is Nb. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Only about 5×10−8% of all matter in the universe is europium. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. Hydrogen is odorless and colorless gas. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. In nuclear reactors, promethium equilibrium exists in power operation. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. Being constructed of 1 proton and 1 electron it has no neutrons. This post has the solution for Atomic number of hydrogen crossword clue. From the given information, we can find out the atomic number of an element in the following ways. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252. Hydrogen is also used in various industrial fields such as metalworking and as a coolant in generators in power stations. Melting point of Hydrogen is -259,1 °C and its the boiling point is -252,9 °C. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. The atomic number of hydrogen is 1. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure. Pure radium is silvery-white alkaline earth metal. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. Upload media Wikipedia: Instance of: chemical element (helium, neutronium) Subclass of: nonmetal: Part of: period 1 , group 1 : Named after: water (Antoine Laurent Lavoisier, 1783–) … The chemical symbol for Tin is Sn. Krypton is a member of group 18 (noble gases) elements. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 electrons in the atomic structure. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Rhenium is a chemical element with atomic number 75 which means there are 75 protons and 75 electrons in the atomic structure. It is the Pauli exclusion principle that requires the electrons in an atom to occupy different energy levels instead of them all condensing in the ground state. The chemical symbol for Ruthenium is Ru. The chemical symbol for Krypton is Kr. Carbon is the 15th most abundant element in the Earth’s crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. It is a soft, silvery-white alkali metal. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. Loosely speaking, the existence or construction of a periodic table of elements creates an ordering of the elements, and so they can be numbered in order. In nuclear industry gadolinium is commonly used as a neutron absorber due to very high neutron absorbtion cross-section of two isotopes 155Gd and 157Gd. Hydrogen's atomic number is 1 because all hydrogen atoms contain exactly one proton. The chemical symbol for Cerium is Ce. Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. The chemical symbol for Lithium is Li. Titanium is a lustrous transition metal with a silver color, low density, and high strength. The chemical symbol for Thallium is Tl. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. The number of electrons in each element’s electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. We use cookies to ensure that we give you the best experience on our website. Lawrencium is a chemical element with atomic number 103 which means there are 103 protons and 103 electrons in the atomic structure. Atomic number = Number of protons. at 0℃ and one atmosphere pressure. Einsteinium is the seventh transuranic element, and an actinide. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. The chemical symbol for Hydrogen is H. Atomic Mass of Hydrogen Atomic mass of Hydrogen is 1.0079 u. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Hydrogen is the chemical element with the element symbol H and atomic number 1. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The chemical symbol for Terbium is Tb. Hydrogen Element- Hydrogen is the simplest element in the universe.Its atom has one proton but without neutron in the nucleus. atomic number: 1 chemical series: nonmetals sample: electron shell hydrogen chemical element with symbol H and atomic number 1; lightest and most abundant chemical substance in the universe. This clue was last seen on New York Times Mini Crossword October 15 2020 Answers In case the clue doesn’t fit or there’s something […] Hafnium’s large neutron capture cross-section makes it a good material for neutron absorption in control rods in nuclear power plants, but at the same time requires that it be removed from the neutron-transparent corrosion-resistant zirconium alloys used in nuclear reactors. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. The atomic number of the hydrogen atom equal to one determines hydrogen carries a positive charge on the nucleus with one outer electron. For an atom to have atomic number 1, it should have a single proton in the nucleus since the definition for atomic number is the number of protons or electrons normally found in an atom of a given chemical element. This is also the value of the ionization energy of an electron in a hydrogen atom. There are over 100 different borate minerals, but the most common are: borax, kernite, ulexite etc. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. The chemical symbol for Potassium is K. Potassium was first isolated from potash, the ashes of plants, from which its name derives. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Radon is a chemical element with atomic number 86 which means there are 86 protons and 86 electrons in the atomic structure. Hydrogen is the element that is atomic number 1 on the periodic table. So it's Relative Atomic Mass is 1. Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. Hydrogen's atomic number is 1 because all hydrogen atoms contain exactly one proton. Hydrogen: Symbol: H: Atomic Number: 1: Atomic Mass: 1.00794 atomic mass units: Number of Protons: 1: Number of Neutrons: 0: Number of Electrons: 1: Melting Point-259.14° C: Boiling Point-252.87° C: Density.08988 grams per cubic centimeter: Normal Phase: Gas: Family: Nonmetal: Period: 1: Cost: $1.00 per gram . In an uncharged atom, the atomic number is also equal to the number of electrons. The name samarium is after the mineral samarskite from which it was isolated. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. Englisch-Deutsch-Übersetzungen für Hydrogen im Online-Wörterbuch dict.cc (Deutschwörterbuch). The chemical symbol for Calcium is Ca. Hydrogen (H) is a tasteless, colorless, odorless gas and has the atomic number 1. Lanthanum is a soft, ductile, silvery-white metal that tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. State of Hydrogen is Gas at standard temperature and pressure Classified as a nonmetal, Hydrogen is a gas at room temperature. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. Hydrogen has an atomic number of 1 and atomic mass of 1.007825g.mol -1. Hydrogen= 1; Helium=2; Lithium=3; Beryllium=4; Boron=5; Carbon=6; Nitogen=7; Oxygen=8; Finding the Atomic Number. Hydrogen (H) is a tasteless, colorless, odorless gas and has the atomic number 1. Atomic mass of Hydrogen is 1.0079 u. the atomic number is one. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife. The most common way of showing the arrangement of electrons in an atom is to draw diagrams like those shown in the diagram. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. Gold is a transition metal and a group 11 element. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). Lithium atoms have three protons, beryllium atoms have four, and so on. Niobium is a soft, grey, ductile transition metal, often found in the minerals pyrochlore (the main commercial source for niobium) and columbite. 15. Holmium is a relatively soft and malleable silvery-white metal. Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Hydrogen boiling point is -252,9 °C. It is the heaviest element that can be formed by neutron bombardment of lighter elements, and hence the last element that can be prepared in macroscopic quantities. Sodium is a soft, silvery-white, highly reactive metal. It is useful to know that the value of \(hcR = 13.6 eV\). Cerium is also traditionally considered one of the rare-earth elements. Atomic Number Orbital Energy Levels. Furthermore, all isotopes of an element typically have the same number of protons and different number of neutrons. is a rare earth element with a metallic silver luster. Hydrogen is the most abundant element in the universe. The chemical symbol for Iron is Fe. For example, in a sodium atom, there are 11 electrons and 11 protons. Updated March 11, 2019. Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. Being constructed of 1 proton and 1 electron it has no neutrons. a. Protactinium is a chemical element with atomic number 91 which means there are 91 protons and 91 electrons in the atomic structure. The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Tin is a post-transition metal in group 14 of the periodic table. The chemical symbol for Hydrogen is H. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. NY Times is most popular newspaper in the USA. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype. The chemical symbol for Hydrogen is H.. Atomic Mass of Hydrogen. Our Website follows all legal requirements to protect your privacy. Atomic hydrogen and nascent hydrogen are two terms used in chemistry to identify the same hydrogen element in different applications. Americium is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas. The most important use of hydrogen in the world is in ammonia manufacture for the fertilizer market. In normal conditions its a colourless, odourless and insipid gas, formed by diatomic molecules, H2. Hydrogen is mostly used in the petroleum and chemical industries. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. The ordering of the electrons in the ground state of multielectron atoms, starts with the lowest energy state (ground state) and moves progressively from there up the energy scale until each of the atom’s electrons has been assigned a unique set of quantum numbers. and Gay-Lussac, L.-J. Because of its high chemical reactivity, barium is never found in nature as a free element. Californium is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium). There are three isotopes of hydrogen namely, protium 1H1, deuterium 1H2 or D and lastly tritium 1H3 or T. The isotopes are different because of the different number of neutrons present in them. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The chemical symbol for Hafnium is Hf. Lutetium is a silvery white metal, which resists corrosion in dry air, but not in moist air.