The chemical symbol for Cadmium is Cd. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Although neodymium is classed as a rare earth, it is a fairly common element. Discoverer: McMillan, Edwin M. and Abelson, Philip H. Discoverer: Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, Arthur C. Wohl, Discoverer: Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso, Discoverer: Glenn T. Seaborg, Ralph A. James, Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr., Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Bernard G. Harvey, Gregory R. Choppin, Albert Ghiorso, Discoverer: Albert Ghiorso, Glenn T. Seaborg, Torbørn Sikkeland, John R. Walton, Discoverer: Albert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer, Copyright 2020 Periodic Table | All Rights Reserved |. Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. Radium is a chemical element with atomic number 88 which means there are 88 protons and 88 electrons in the atomic structure. Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. The chemical symbol for Lead is Pb. Iridium is a very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium). Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Lead is a heavy metal that is denser than most common materials. The chemical symbol for Chromium is Cr. Nickel belongs to the transition metals and is hard and ductile. The intensive properties cv and cp are defined for pure, simple compressible substances as partial derivatives of the internal energy u(T, v) and enthalpy h(T, p), respectively: where the subscripts v and p denote the variables held fixed during differentiation. 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. Oxygen is a chemical element with atomic number 8 which means there are 8 protons and 8 electrons in the atomic structure. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. The chemical symbol for Polonium is Po. The heat transfer characteristics of a solid material are measured by a property called the thermal conductivity, k (or λ), measured in W/m.K. Fermium is a member of the actinide series. 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. All metals are good conductor of heat and electricity as they have plenty of free electrons in them. The chemical symbol for Mercury is Hg. Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. The chemical symbol for Europium is Eu. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles. Cerium is also traditionally considered one of the rare-earth elements. Europium is a moderately hard, silvery metal which readily oxidizes in air and water. Francium is a highly radioactive metal that decays into astatine, radium, and radon. Posted in: Safety, Pro Tips, stainless steel, copper, aluminum, heat conductor, heat conducting metal. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Cerium is the second element in the lanthanide series. The chemical symbol for Ytterbium is Yb. Lead is soft and malleable, and has a relatively low melting point. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. Magnesium is a good conductor of electricity and heat as it is a metal. The name xenon for this gas comes from the Greek word ξένον [xenon], neuter singular form of ξένος [xenos], meaning ‘foreign(er)’, ‘strange(r)’, or ‘guest’. Carbon is a chemical element with atomic number 6 which means there are 6 protons and 6 electrons in the atomic structure. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Time to Read: 2m 18s. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. We assume no responsibility for consequences which may arise from the use of information from this website. Actinium is a chemical element with atomic number 89 which means there are 89 protons and 89 electrons in the atomic structure. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. All metals are good conductor of heat and electricity as they have plenty of free electrons in them. The chemical symbol for Zirconium is Zr. The chemical symbol for Indium is In. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252. www.nuclear-power.net. 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. Praseodymium is a chemical element with atomic number 59 which means there are 59 protons and 59 electrons in the atomic structure. Lawrencium is the final member of the actinide series. Magnesium hydroxide, Mg(OH) 2, is a white powder produced in large quantities from seawater by the addition of milk of lime (calcium hydroxide).It is the primary raw material in the production of magnesium metal and has been used as a fire-retardant additive. Europium is one of the least abundant elements in the universe. It is occasionally found in native form as elemental crystals. The chemical symbol for Manganese is Mn. The chemical symbol for Helium is He. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Gold is a transition metal and a group 11 element. Berkelium is a member of the actinide and transuranium element series. 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. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Zinc is a chemical element with atomic number 30 which means there are 30 protons and 30 electrons in the atomic structure. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. The chemical symbol for Bismuth is Bi. 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. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. It is even less abundant than the so-called rare earths. a) Explain why the metals magnesium and aluminium are good conductors of electricity