Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan José and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. 2) You may not distribute or commercially exploit the content, especially on another website. The chemical symbol for Germanium is Ge. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. But this “huge” space is occupied primarily by electrons, because the nucleus occupies only about 1721×10−45 m3 of space. ; Washington, DC 20230. The Standard English unit is pounds mass per cubic foot (lbm/ft3). Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. Density, ρ, has units typically [kg/m3] or [lb/ft3], and is defined by the ratio of the mass to the volume of a substance: where     m = mass, units typically [kg] or [lb]                V = volume, units typically [m3] or [ft3]. 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. The chemical symbol for Scandium is Sc. The name samarium is after the mineral samarskite from which it was isolated. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. The volume of an atom is about 15 orders of magnitude larger than the volume of a nucleus. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. There are 14 general types of such patterns known as Bravais lattices. Dysprosium is used for its high thermal neutron absorption cross-section in making control rods in nuclear reactors, for its high magnetic susceptibility in data storage applications. What is the popular or general journal called in English? The chemical symbol for Krypton is Kr. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. The chemical symbol for Francium is Fr. Helium phase diagram. The chemical symbol for Ruthenium is Ru. Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. Cookies are only used in the browser to improve user experience. Lead is widely used as a gamma shield. The chemical symbol for Protactinium is Pa. Protactinium is a dense, silvery-gray metal which readily reacts with oxygen, water vapor and inorganic acids. Neodymium is a soft silvery metal that tarnishes in air. Feel free to ask a question, leave feedback or take a look at one of our articles. Helium, gas weighs 0.0001785 gram per cubic centimeter or 0.1785 kilogram per cubic meter, i.e. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. All of its isotopes are radioactive. Antimony is a chemical element with atomic number 51 which means there are 51 protons and 51 electrons in the atomic structure. 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. Maybe add your school logo, work team or anything else to make your paper look cool? We don't collect information from our users. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Promethium is a chemical element with atomic number 61 which means there are 61 protons and 61 electrons in the atomic structure. If we include man made elements, the densest so far is Hassium. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. 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. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. The chemical symbol for Neon is Ne. The chemical symbol for Oxygen is O. Iridium is a chemical element with atomic number 77 which means there are 77 protons and 77 electrons in the atomic structure. Anyone can be able to come here, learn the basics of materials science, material properties and to compare these properties. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. energy or fuel economy of an electric vehicle is used to estimate mileage and electricity cost associated with and usage of the vehicle. The chemical symbol for Potassium is K. Potassium was first isolated from potash, the ashes of plants, from which its name derives. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The temperature is then raised to T = 105°C, but the pressure is kept constant. 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 Titanium is Ti. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. Electric car energy economy, i.e. Discoverer: Davy, Sir H. and Thénard, L.-J. Use, The Conversions and Calculations web site. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. In fact their absorption cross-sections are the highest among all stable isotopes. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. The chemical symbol for Osmium is Os. show calculations please. The chemical symbol for Gallium is Ga. Gallium has similarities to the other metals of the group, aluminium, indium, and thallium. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. The chemical symbol for Berkelium is Bk. 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.