The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. The chemical symbol for Erbium is Er. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 electrons in the atomic structure. The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. Uranium has the highest atomic weight of the primordially occurring elements. The chemical symbol for Lutetium is Lu. Fermium is a member of the actinide series. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. Its abundance in rocky planets like Earth is due to its abundant production by fusion in high-mass stars. The atomic radii decrease across the periodic table because as the atomic number increases, the number of protons increases across the period, but the extra electrons are only added to the same quantum shell. Krypton is a member of group 18 (noble gases) elements. Neptunium metal is silvery and tarnishes when exposed to air. The chemical symbol for Terbium is Tb. For example, 63Cu (29 protons and 34 neutrons) has a mass number of 63 and an isotopic mass in its nuclear ground state is 62.91367 u. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). Want to see this answer and more? Astatine is the rarest naturally occurring element on the Earthâs crust. Although classified as a rare earth element, samarium is the 40th most abundant element in the Earthâs crust and is more common than such metals as tin. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure. The chemical symbol for Bismuth is Bi. If 10 years is a decade, then what is 4 years. The chemical symbol for Titanium is Ti. The chemical symbol for Niobium is Nb. Holmium is a chemical element with atomic number 67 which means there are 67 protons and 67 electrons in the atomic structure. Thorium metal is silvery and tarnishes black when exposed to air, forming the dioxide. Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. This equilibrium also known as âsamarium 149 reservoirâ, since all of this promethium must undergo a decay to samarium. By mass, aluminium makes up about 8% of the Earthâs 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. Cerium is a soft, ductile and silvery-white metal that tarnishes when exposed to air, and it is soft enough to be cut with a knife. The chemical symbol for Actinium is Ac. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. The size and mass of atoms are so small that the use of normal measuring units, while possible, is often inconvenient. The information contained in this website is for general information purposes only. ), and shape. This is the volume for any sphere. Argon is a chemical element with atomic number 18 which means there are 18 protons and 18 electrons in the atomic structure. This variation is typically small for solids and liquids but much greater for gases. Helium is a chemical element with atomic number 2 which means there are 2 protons and 2 electrons in the atomic structure. The chemical symbol for Fermium is Fm. It is a noble metal and a member of the platinum group. Check out a sample Q&A here. Its properties are thus intermediate between those of chlorine and iodine. We assume the earth is a perfect sphere, ... 1 km = 1000m = 100 cm, so 1km = 10000cm = 10^5 cm, ... (divide 6.38 x 10^8 by 10^5, remember, you divide exponents by subtracting them [8-5=3], (6.38 x 10^3) ^3 (4/3) pi = 1.08780399 × 10 ^ 12 km^3, 1,097,509,500,000,000,000,000,000,000 cubic centimeters from another. The chemical symbol for Tungsten is W. Tungsten is a rare metal found naturally on Earth almost exclusively in chemical compounds. would be immediately apparent that the earth is NOT spherical and The chemical symbol for Americium is Am. Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. It is even less abundant than the so-called rare earths. The density of a material varies with temperature and pressure. Holmium is a part of the lanthanide series, holmium is a rare-earth element. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. As the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine. The chemical symbol for Vanadium is V. Vanadium is a hard, silvery grey, ductile, and malleable transition metal. The chemical symbol for Lawrencium is Lr. The chemical symbol for Selenium is Se. The chemical symbol for Sulfur is S. Sulfur is abundant, multivalent, and nonmetallic. Although neodymium is classed as a rare earth, it is a fairly common element. Why don't libraries smell like bookstores? Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air. The volume of the Earth is 1.0832073 × 1012 km3. al. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. This effect is caused by a decrease in the atomic number density. The chemical symbol for Cadmium is Cd. At 0.099%, phosphorus is the most abundant pnictogen in the Earthâs crust. The chemical symbol for Osmium is Os. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. Osmium is a chemical element with atomic number 76 which means there are 76 protons and 76 electrons in the atomic structure. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 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. The chemical symbol for Lead is Pb. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. Calculate the average density of the earth in g/cm3, assuming our planet to be a perfect sphere. The mean radius of the earth is approximately 6.4 million meters (exact = 6.37 x 10 6 m). Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. The chemical symbol for Silver is Ag. The chemical symbol for Gadolinium is Gd. Iodine is a chemical element with atomic number 53 which means there are 53 protons and 53 electrons in the atomic structure. 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. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. www.nuclear-power.net. Lutetium is the last element in the lanthanide series, and it is traditionally counted among the rare earths. Increasing the pressure on an material (especially for liquids or gases) decreases the volume of the object and thus increases its density via the atomic number density. Step-by-step answers are written by subject experts who are available 24/7. Volume of the earth is (4/3) pi (radius) ^ 3 This is the volume for any sphere. The chemical symbol for Iodine is I. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. Iron is a metal in the first transition series. 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 Copper is Cu. A crystal lattice is a repeating pattern of mathematical points that extends throughout space. The density of Hassium results from its high atomic weight and from the significant decrease in ionic radii of the elements in the lanthanide series, known as lanthanide and actinide contraction. Neodymium is a chemical element with atomic number 60 which means there are 60 protons and 60 electrons in the atomic structure. The chemical symbol for Zirconium is Zr. 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. I knew the mass of the Earth in grams is 5.979 × 10 27. Gold is a transition metal and a group 11 element. The chemical symbol for Tantalum is Ta. Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. Chemically, sulfur reacts with all elements except for gold, platinum, iridium, tellurium, and the noble gases. The chemical symbol for Curium is Cm. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earthâs atmosphere. Einsteinium is the seventh transuranic element, and an actinide. The chemical symbol for Astatine is At. Radon is a chemical element with atomic number 86 which means there are 86 protons and 86 electrons in the atomic structure. © 2019 periodic-table.org / see also Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). The chemical symbol for Radium is Ra. Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 electrons in the atomic structure. The mean density of the Earth is 5.515 g/cm3 Natural boron consists primarily of two stable isotopes, 11B (80.1%) and 10B (19.9%).