Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. The chemical symbol for Lead is Pb. The bulk properties of astatine are not known with any certainty. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. The chemical symbol for Barium is Ba. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. Zirconium is widely used as a cladding for nuclear reactor fuels. All of the alkali metals have a single valence electron in the outer electron shell, which is easily removed to create an ion with a positive charge – a cation, which combines with anions to form salts. 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. The chemical symbol for Silicon is Si. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. Terbium is a silvery-white, rare earth metal that is malleable, ductile, and soft enough to be cut with a knife. The chemical symbol for Erbium is Er. The chemical symbol for Potassium is K. Potassium was first isolated from potash, the ashes of plants, from which its name derives. The electron configuration for magnesium is 1s2 2s2 2p6 3s2. The chemical symbol for Argon is Ar. Tungsten is an intrinsically brittle and hard material, making it difficult to work. Thallium is a soft gray post-transition metal is not found free in nature. The chemical symbol for Cadmium is Cd. Titanium is a lustrous transition metal with a silver color, low density, and high strength. Nickel belongs to the transition metals and is hard and ductile. The chemical symbol for Copper is Cu. Sodium - Electron Configuration and Oxidation States - Na, Neon - Electron Configuration and Oxidation States - Ne, What is Mass and Charge of Electron - Definition, Helium - Electron Configuration and Oxidation States - He, Hydrogen - Electron Configuration and Oxidation States - H, Sodium – Electron Configuration and Oxidation States – Na, Aluminium – Electron Configuration and Oxidation States – Al. The chemical symbol for Titanium is Ti. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. Arsenic is a metalloid. The electron configuration for magnesium is 1s2 2s2 2p6 3s2. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 electrons in the atomic structure. It is occasionally found in native form as elemental crystals. The chemical symbol for Cerium is Ce. Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. Iron is a metal in the first transition series. Only about 5×10−8% of all matter in the universe is europium. The first part of the magnesium electron configuration — 1s2 — indicates there are two electrons in sub-shell p of the first energy level. It is fairly soft and slowly tarnishes in air. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. The chemical symbol for Gold is Au. The chemical symbol for Radon is Rn. Includes Concise Form of Electron Configuration Notation and Magnesium (Mg). © 2019 periodic-table.org / see also The configuration of these electrons follows from the principles of quantum mechanics. The chemical symbol for Nickel is Ni. Because of its high chemical reactivity, barium is never found in nature as a free element. The periodic table is a tabular display of the chemical elements organized on the basis of their atomic numbers, electron configurations, and chemical properties. 1) You may use almost everything for non-commercial and educational use. The ion, Mg2+, has two electrons fewer, so the outer two electrons are removed from the electron configuration. The Cookies Statement is part of our Privacy Policy. Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 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. Electron configuration is a representation of how electrons are arranged in an atom or molecule. Titanium can be used in surface condensers. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atom—the Na+ cation. Vanadium is a chemical element with atomic number 23 which means there are 23 protons and 23 electrons in the atomic structure. Electron configuration of Magnesium is [Ne] 3s2. 113Cd has specific absorption cross-section. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. The chemical symbol for Magnesium is Mg. Magnesium is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure. These condensers use tubes that are usually made of stainless steel, copper alloys, or titanium depending on several selection criteria (such as thermal conductivity or corrosion resistance). The chemical symbol for Bromine is Br. It is the fourth most common element in the Earth’s crust. The chemical symbol for Lithium is Li. It is by mass the most common element on Earth, forming much of Earth’s outer and inner core. Ruthenium is a chemical element with atomic number 44 which means there are 44 protons and 44 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”. 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. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. Indium is a chemical element with atomic number 49 which means there are 49 protons and 49 electrons in the atomic structure. Neptunium is the first transuranic element. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. The chemical symbol for Americium is Am. The chemical symbol for Tin is Sn. In the periodic table, the elements are listed in order of increasing atomic number Z. Festival of Sacrifice: The Past and Present of the Islamic Holiday of Eid al-Adha.