Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 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. Chlorine is a chemical element with atomic number 17 which means there are 17 protons and 17 electrons in the atomic structure. Francium is an alkali metal, that has one valence electron. The atomic mass of germanium will the average atomic mass which is between the masses of the five isotopes. (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. The chemical symbol for Tantalum is Ta. Francium is the second-least electronegative element, behind only caesium, and is the second rarest naturally occurring element (after astatine). 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. Atomic Data for Germanium (Ge) Germanium (Ge) Atomic Data for Germanium (Ge) Atomic Number = 32. Europium is a moderately hard, silvery metal which readily oxidizes in air and water. The various species of atoms whose nuclei contain particular numbers of protons and neutrons are called nuclides. About This Site 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. is a rare earth element with a metallic silver luster. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. Isotope. Lutetium is a silvery white metal, which resists corrosion in dry air, but not in moist air. This page was created by Yinon Bentor. The chemical symbol for Praseodymium is Pr. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. The chemical symbol for Lanthanum is La. Abundance. Fermium is a member of the actinide series. The Atomic Mass Of Germanium Is 72.6 U And The Germanium Lattice Constant A Is 5.65 Å. According to the Einstein relationship (E=mc2), this binding energy is proportional to this mass difference and it is known as the mass defect. Isotopes are two or more forms of an element. In the above, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. Germanium is a chemical element with Ge as its symbol. This germaniu… It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. Uranium is a silvery-white metal in the actinide series of the periodic table. Arsenic is a metalloid. Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 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 difference is a measure of the nuclear binding energy which holds the nucleus together. 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 |. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. Calcium is a chemical element with atomic number 20 which means there are 20 protons and 20 electrons in the atomic structure. The chemical symbol for Argon is Ar. The chemical symbol for Tin is Sn. The chemical symbol for Mercury is Hg. 70Ge = 20.52. Therefore the standard atomic mass of germanium is calculated by using the standard formula    Atomic Number The atomic mass is carried by the atomic nucleus, which occupies only about 10-12 of the total volume of the atom or less, but it contains all the positive charge and at least 99.95% of the total mass of the atom. Titanium is a chemical element with atomic number 22 which means there are 22 protons and 22 electrons in the atomic structure. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. Atomic Mass Number – Does it conserve in a nuclear reaction? Bromine is a chemical element with atomic number 35 which means there are 35 protons and 35 electrons in the atomic structure.    Transition Metals Germanium In 1961, the Commission recommended Ar (Ge) = 72.59, based on chemical ratio determinations. The chemical symbol for Aluminum is Al. The densest material found on earth is the metal osmium, but its density pales by comparison to the densities of exotic astronomical objects such as white dwarf stars and neutron stars. Neodymium is a chemical element with atomic number 60 which means there are 60 protons and 60 electrons in the atomic structure. Its extreme rarity in the Earth’s crust, comparable to that of platinum.  Help Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins.    Metalloids For other isotopes, the isotopic mass usually differs and is usually within 0.1 u of the mass number. Use of this web site is restricted by this site's license Lead is soft and malleable, and has a relatively low melting point. al. Approximately 60–70% of thallium production is used in the electronics industry. The Standard English unit is pounds mass per cubic foot (lbm/ft3). Caesium is a soft, silvery-gold alkali metal with a melting point of 28.5 °C, which makes it one of only five elemental metals that are liquid at or near room temperature. Lead is widely used as a gamma shield. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 electrons in the atomic structure. The chemical symbol for Rhodium is Rh. 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. Atomic Number 14 Atomic Mass g/mol Periodic Table Group 32 Row / Period 4 Element Category Semimetal Chhapa Germanium ke electron shell. In fact their absorption cross-sections are the highest among all stable isotopes. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. There are five naturally occurring isotopes of germanium: germanium-70, germanium-72, germanium-73, germanium-74, and germanium-76. Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. Germanium ek chemical element hae jiske chemical symbol Ge, atomic number 32 aur atomic mass 73 hae. Thulium is the thirteenth and third-last element in the lanthanide series. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. It is less abundant than either tin or lead. Elemental sulfur is a bright yellow crystalline solid at room temperature. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. Germanium's abundance in the Earth's crust is approximately 1.6 ppm.    Alkali Metals Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. Sodium is a soft, silvery-white, highly reactive metal. The chemical symbol for Osmium is Os. The chemical symbol for Selenium is Se. Its physical and chemical properties are most similar to its heavier homologues strontium and barium. The chemical symbol for Californium is Cf. The chemical symbol for Rhenium is Re. However, today it is primarily obtained from the smelting of zinc ores and as a byproduct of burning certain types of coal. Name: Germanium Symbol: Ge Atomic Number: 32 Atomic Mass: 72.61 amu Number of Protons/Electrons: 32 Number of Neutrons: 41 Date of Discovery: 1886 Discoverer: Clemens Winkler Uses: semiconductors Classification: Metalloid Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. Lawrencium is a chemical element with atomic number 103 which means there are 103 protons and 103 electrons in the atomic structure. 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. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure. Chromium is a steely-grey, lustrous, hard and brittle metal4 which takes a high polish, resists tarnishing, and has a high melting point. The chemical symbol for Zinc is Zn. The chemical symbol for Polonium is Po. Copper is a chemical element with atomic number 29 which means there are 29 protons and 29 electrons in the atomic structure. Hafnium’s large neutron capture cross-section makes it a good material for neutron absorption in control rods in nuclear power plants, but at the same time requires that it be removed from the neutron-transparent corrosion-resistant zirconium alloys used in nuclear reactors. 73.921178 g/mol. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. The chemical symbol for Neptunium is Np. Mass. For example, the neutron number of uranium-238 is 238-92=146. Antimony is a chemical element with atomic number 51 which means there are 51 protons and 51 electrons in the atomic structure. Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. Each nuclide is denoted by chemical symbol of the element (this specifies Z) with tha atomic mass number as supescript. Actinium is a soft, silvery-white radioactive metal. agreement. Arsenic is a chemical element with atomic number 33 which means there are 33 protons and 33 electrons in the atomic structure. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. The chemical symbol for Silver is Ag. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity, behind only oxygen and fluorine. Lawrencium is the final member of the actinide series. Like silicon, gallium, bismuth, antimony, and water, germanium is one of the few substances that expands as it solidifies (i.e. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. 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. Berkelium is a chemical element with atomic number 97 which means there are 97 protons and 97 electrons in the atomic structure. The Cookies Statement is part of our Privacy Policy. Atomic number of silicon is 32 and is indicated by the symbol Ge. Krypton is a member of group 18 (noble gases) elements. Under standard conditions, germanium is a brittle, silvery-white, semi-metallic element. On a weight basis, germanium is a scarce but not an extremely rare (about 1.5 parts per million) element in the crust of the Earth, equaling in abundance beryllium, molybdenum, and cesium and exceeding the elements arsenic, cadmium, antimony, and mercury.In the cosmos the atomic abundance of germanium is 50.5 (based upon Si = 1 × 10 6), a value roughly equal to those for krypton and … Number of Neutrons: 41. 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. Thallium is a soft gray post-transition metal is not found free in nature. Thorium is moderately hard, malleable, and has a high melting point. Ge have five naturally occurring isotopes from 70Ge, 72Ge, 73Ge, 74Ge, and 76Ge. The chemical symbol for Gallium is Ga. Gallium has similarities to the other metals of the group, aluminium, indium, and thallium. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. The chemical symbol for Neodymium is Nd. The chemical symbol for Lutetium is Lu. 1) You may use almost everything for non-commercial and educational use. Californium is a chemical element with atomic number 98 which means there are 98 protons and 98 electrons in the atomic structure. The chemical symbol for Curium is Cm. Carbon is the 15th most abundant element in the Earth’s crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. Neptunium metal is silvery and tarnishes when exposed to air. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. 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