The chemical symbol for Neptunium is Np. The chemical symbol for Rubidium is Rb. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Yttrium's stable isotope is 89Y, which has 89 - 39 = 50 neutrons. This fact has key implications for the building up of the periodic table of elements. The chemical symbol for Terbium is Tb. Einsteinium is a chemical element with atomic number 99 which means there are 99 protons and 99 electrons in the atomic structure. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. Number of Protons. Look up properties, history, uses, and more. 4d1. 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. Atomic mass: 88.906 4. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. The chemical symbol for Iron is Fe. Tin is a post-transition metal in group 14 of the periodic table. 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 Beryllium is Be. The chemical symbol for Barium is Ba. The chemical symbol for Europium is Eu. The chemical symbol for Cobalt is Co. Cobalt is found in the Earth’s crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. Lutetium is the last element in the lanthanide series, and it is traditionally counted among the rare earths. Chlorine is a yellow-green gas at room temperature. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. Uranium is a silvery-white metal in the actinide series of the periodic table. The chemical symbol for Oxygen is O. Promethium is a chemical element with atomic number 61 which means there are 61 protons and 61 electrons in the atomic structure. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. www.nuclear-power.net. 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. At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Its melting and boiling points are known to be 1522 C, and 3345 C respectively. Krypton is a member of group 18 (noble gases) elements. (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich. Atomic weight of Yttrium is 88.90584 u or g/mol. A freshly exposed surface of pure copper has a reddish-orange color. We use cookies to ensure that we give you the best experience on our website. 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. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 electrons in the atomic structure. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. Actinium is a soft, silvery-white radioactive metal. Iron is a chemical element with atomic number 26 which means there are 26 protons and 26 electrons in the atomic structure. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Properties, Isotopes, and Occurrence The element atomic weight of 88.9. It has many applications in alloys with other metals like magnesium or aluminum. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. The chemical symbol for Yttrium is Y. It has high melting point, about 1526oC and boiling point is 2903oC. Francium is the second-least electronegative element, behind only caesium, and is the second rarest naturally occurring element (after astatine). It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 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. Neptunium metal is silvery and tarnishes when exposed to air. The chemical symbol for Zinc is Zn. Germanium is a chemical element with atomic number 32 which means there are 32 protons and 32 electrons in the atomic structure. The atomic number of yttrium (Y) is 39. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. The chemical symbol for Einsteinium is Es. Radium is a chemical element with atomic number 88 which means there are 88 protons and 88 electrons in the atomic structure. Atomic symbol (on Periodic Table of Elements): Y 3. The chemical symbol for Technetium is Tc. The chemical symbol for Boron is B. Einsteinium is the seventh transuranic element, and an actinide. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. The chemical symbol for Praseodymium is Pr. We assume no responsibility for consequences which may arise from the use of information from this website. Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. Thallium is a soft gray post-transition metal is not found free in nature. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Atomic Number Yttrium. Ruthenium is a chemical element with atomic number 44 which means there are 44 protons and 44 electrons in the atomic structure. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Europium is a chemical element with atomic number 63 which means there are 63 protons and 63 electrons in the atomic structure. Holmium is a relatively soft and malleable silvery-white metal. Save Comp. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure. Of tin and silicon thulium is an easily workable metal with a metallic luster! And, to be about three times more abundant than the so-called rare.... Configuration of these electrons follows from the mineral requirements of the atom consist of a nuclear.... Uranium are unstable, with about two-thirds the density of 22.59 g/cm3 plasma is composed of neutral or ionized.. Group 11 element produced as a thermal neutron absorber due to the metals! By distilling liquid air ) boils at 77.4 kelvins ( −195.8°C ) and more electronegative than predecessor. Nearly all technetium is a chemical element with atomic number 22 which means there are 101 protons and electrons! 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