Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. © 2019 periodic-table.org / see also Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. The chemical symbol for Hafnium is Hf. The chemical symbol for Palladium is Pd. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. Tin is a chemical element with atomic number 50 which means there are 50 protons and 50 electrons in the atomic structure. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). The bulk properties of astatine are not known with any certainty. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 electrons in the atomic structure. 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 Yttrium is Y. Yttrium is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a “rare-earth element”. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. You can reference the WebElements periodic table as follows:"WebElements, https://www.webelements.com, accessed November 2020. In the crystal structures the formation of two subunits is apparent, viz. Osmium is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earth’s crust and is more common than such metals as tin. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. The chemical symbol for Einsteinium is Es. The chemical symbol for Thorium is Th. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Xenon is a chemical element with atomic number 54 which means there are 54 protons and 54 electrons in the atomic structure. Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. The elemental metal is rarely found in nature, but once isolated artificially, the formation of an oxide layer (passivation) stabilizes the free metal somewhat against further oxidation. Lead is soft and malleable, and has a relatively low melting point. All rights reserved. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). 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. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. These two polymorphs are wurtzite and zincblende (also known as sphalerite). Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. 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. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. Ruthenium is a rare transition metal belonging to the platinum group of the periodic table. The chemical symbol for Dysprosium is Dy. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. The chemical symbol for Fermium is Fm. Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. There are 14 general types of such patterns known as Bravais lattices. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Thulium is the thirteenth and third-last element in the lanthanide series. Arsenic is a metalloid. The chemical symbol for Lanthanum is La. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. The name samarium is after the mineral samarskite from which it was isolated. Above 210 °C, the metal becomes brittl… Niobium is a chemical element with atomic number 41 which means there are 41 protons and 41 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. Neodymium is a soft silvery metal that tarnishes in air. Although neodymium is classed as a rare earth, it is a fairly common element. 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 Argon is Ar. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. The chemical symbol for Aluminum is Al. The zincblende form can be stabilized by growing ZnO on substrates with cubic lattice structure. The chemical symbol for Lithium is Li. The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table.

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