It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. 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. The chemical symbol for Dysprosium is Dy. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. Zirconium is widely used as a cladding for nuclear reactor fuels. The name samarium is after the mineral samarskite from which it was isolated. The chemical symbol for Sodium is Na. The chemical symbol for Iron is Fe. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Platinum is one of the least reactive metals. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide. Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. The chemical symbol for Berkelium is Bk. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. In fact their absorption cross-sections are the highest among all stable isotopes. The chemical symbol for Samarium is Sm. The chemical symbol for Technetium is Tc. 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. The chemical symbol for Zirconium is Zr. Silver is a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. Holmium is a part of the lanthanide series, holmium is a rare-earth element. Titanium can be used in surface condensers. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. Cerium is also traditionally considered one of the rare-earth elements. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 electrons in the atomic structure. The chemical symbol for Palladium is Pd. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. The chemical symbol for Strontium is Sr. Strontium is an alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. Mercury is a heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard conditions for temperature and pressure. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. Francium is the second-least electronegative element, behind only caesium, and is the second rarest naturally occurring element (after astatine). Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%). Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. The Cookies Statement is part of our Privacy Policy. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. Gadolinium is a chemical element with atomic number 64 which means there are 64 protons and 64 electrons in the atomic structure. Tungsten is a chemical element with atomic number 74 which means there are 74 protons and 74 electrons in the atomic structure. The chemical symbol for Praseodymium is Pr. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. 1) You may use almost everything for non-commercial and educational use. Like all elements with atomic number over 100, lawrencium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Tin is a post-transition metal in group 14 of the periodic table. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. The chemical symbol for Silver is Ag. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. In a neutral atom there are as many electrons as protons moving about nucleus. It is fairly soft and slowly tarnishes in air. It readily forms hard, stable carbides in alloys, and for this reason most of world production of the element (about 80%) is used in steel alloys, including high-strength alloys and superalloys. The chemical symbol for Hafnium is Hf. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Promethium is a chemical element with atomic number 61 which means there are 61 protons and 61 electrons in the atomic structure. Titanium is a lustrous transition metal with a silver color, low density, and high strength. Because of its high chemical reactivity, barium is never found in nature as a free element. 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. The chemical symbol for Potassium is K. Potassium was first isolated from potash, the ashes of plants, from which its name derives. 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. The chemical symbol for Nickel is Ni. Only about 5×10−8% of all matter in the universe is europium. Its properties are thus intermediate between those of chlorine and iodine. Naturally occurring potassium is composed of three isotopes, of which 40K is radioactive. Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. Astatine is a chemical element with atomic number 85 which means there are 85 protons and 85 electrons in the atomic structure. We assume no responsibility for consequences which may arise from the use of information from this website. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. It occurs on Earth as the decay product of various heavier elements.