plutonium atomic mass

The material will generate about 0.57 watts/gram of 238Pu. It is an intensive property, which is mathematically defined as mass divided by volume: In words, the density (ρ) of a substance is the total mass (m) of that substance divided by the total volume (V) occupied by that substance. We can determine the neutron number of certain isotope. Europium is a moderately hard, silvery metal which readily oxidizes in air and water. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Indium is a post-transition metal that makes up 0.21 parts per million of the Earth’s crust. Hafnium is a lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. They are 238 Pu, 239 Pu, and 240 Pu. 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. Uranium is weakly radioactive because all isotopes of uranium are unstable, with half-lives varying between 159,200 years and 4.5 billion years. Scandium is a silvery-white metallic d-block element, it has historically been sometimes classified as a rare-earth element, together with yttrium and the lanthanides. The chemical symbol for Krypton is Kr. Thulium is the thirteenth and third-last element in the lanthanide series. Only about 5×10−8% of all matter in the universe is europium. 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. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. The chemical symbol for Neptunium is Np. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 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. According to the Einstein relationship (E=mc2), this binding energy is proportional to this mass difference and it is known as the mass defect. Thorium is moderately hard, malleable, and has a high melting point. Gold is a transition metal and a group 11 element. 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. Arsenic is a metalloid. Plutonium-238 is a very powerful alpha emitter; as alpha particles are easily blocked, this makes the plutonium-238 isotope suitable for usage in radioisotope thermoelectric generators and radioisotope heater units. Plutonium: Atomic Number: 94: Symbol: Pu: Element Category: Rare Earth Metal: Phase at STP: Synthetic: Atomic Mass [amu] 244: Density at STP: 19.816 g/cm3 Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. If you continue to use this site we will assume that you are happy with it. Density is defined as the mass per unit volume. Neptunium-239 is made as an intermediate product, which then decays to form plutonium-238. Lithium is a chemical element with atomic number 3 which means there are 3 protons and 3 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. Holmium is a relatively soft and malleable silvery-white metal. Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. It is even less abundant than the so-called rare earths. One atomic mass unit is equal to 1.66 x 10-24 grams. The relative atomic mass of Plutonium is given as 244 amu. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. There are two reasons for the difference between mass number and isotopic mass, known as the mass defect: Typical densities of various substances at atmospheric pressure. 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. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. The chemical symbol for Chlorine is Cl. The chemical symbol for Mercury is Hg. It has been called the most complex metal and a physicist's dream but an engineer's nightmare. The chemical symbol for Lanthanum is La. 15117-48-3. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides. The chemical symbol for Indium is In. Bismuth is a brittle metal with a silvery white color when freshly produced, but surface oxidation can give it a pink tinge. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The chemical symbol for Promethium is Pm. The atomic mass is the mass of an atom. Plutonium-238 is a radioactive isotope of plutonium that has a half-life of 87.7 years. Uranium has the highest atomic weight of the primordially occurring elements. Lutetium is the last element in the lanthanide series, and it is traditionally counted among the rare earths. The chemical symbol for Holmium is Ho. The chemical symbol for Arsenic is As. The chemical symbol for Gallium is Ga. Gallium has similarities to the other metals of the group, aluminium, indium, and thallium. Some cool Features. Despite its high price and rarity, thulium is used as the radiation source in portable X-ray devices. In fact their absorption cross-sections are the highest among all stable isotopes. Einsteinium is the seventh transuranic element, and an actinide. Neptunium is the first transuranic element. It is occasionally found in native form as elemental crystals. Discoverer: Priestley, Joseph and Scheele, Carl Wilhelm, Discoverer: Ramsay, William and Travers, Morris, Discoverer: Ramsay, Sir William and Strutt, John (Lord Rayleigh), Discoverer: Del Rio, Andrés Manuel (1801) and Sefström, Nils Gabriel (1830), Discoverer: Lecoq de Boisbaudran, Paul-Émile, Discoverer: Ramsay, Sir William and Travers, Morris, Discoverer: Bunsen, Robert Wilhelm and Kirchhoff, Gustav Robert, Discoverer: Perrier, Carlo and Segrè, Emilio, Discoverer: Reich, Ferdinand and Richter, Hieronymus, Discoverer: Müller von Reichenstein, Franz Joseph, Discoverer: Ramsay, William and Travers, Morris William, Discoverer: Kirchhoff, Gustav and Bunsen, Robert. In nuclear industry gadolinium is commonly used as a neutron absorber due to very high neutron absorbtion cross-section of two isotopes 155Gd and 157Gd. One kilogram is equivalent to about 22 million kilowatt hours of heat energy. The chemical symbol for Einsteinium is Es. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. The chemical symbol for Samarium is Sm. 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 |. Tellurium is chemically related to selenium and sulfur. The chemical symbol for Lithium is Li. Rhenium is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. 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. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. Pure radium is silvery-white alkaline earth metal. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. The unit of measure for mass is the atomic mass unit (amu). Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. 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. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. www.nuclear-power.net. Uranium is a silvery-white metal in the actinide series of the periodic table. Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Its discovery created unique opportunities and challenges for scientists and corporate partners of the Manhattan Project. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Cadmium is a soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. It is the fourth most common element in the Earth’s crust. Tin is a post-transition metal in group 14 of the periodic table. Our Website follows all legal requirements to protect your privacy. Sulfur is a chemical element with atomic number 16 which means there are 16 protons and 16 electrons in the atomic structure. Its properties are thus intermediate between those of chlorine and iodine. The chemical symbol for Oxygen is O. Silicon is a hard and brittle crystalline solid with a blue-grey metallic lustre, it is a tetravalent metalloid and semiconductor. Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. Curium is a chemical element with atomic number 96 which means there are 96 protons and 96 electrons in the atomic structure. The chemical symbol for Thallium is Tl. Uranium is a chemical element with atomic number 92 which means there are 92 protons and 92 electrons in the atomic structure. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. It is also the most corrosion-resistant metal, even at temperatures as high as 2000 °C. Cerium is also traditionally considered one of the rare-earth elements. The chemical symbol for Rhenium is Re. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a … Plutonium was the second transuranium element of the actinide series to be discovered. 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. Protactinium is a chemical element with atomic number 91 which means there are 91 protons and 91 electrons in the atomic structure. The chemical symbol for Uranium is U. These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. 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 Iron is Fe. Its extreme rarity in the Earth’s crust, comparable to that of platinum. One atomic mass unit is equal to 1.66 x 10-24 grams. It occurs on Earth as the decay product of various heavier elements. Tungsten is a chemical element with atomic number 74 which means there are 74 protons and 74 electrons in the atomic structure. Under standard conditions, it is the lightest metal and the lightest solid element. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Symbol: Pu. Significant concentrations of boron occur on the Earth in compounds known as the borate minerals. The bulk properties of astatine are not known with any certainty. However, uranium 235 has a high fission probability. Radon is a radioactive, colorless, odorless, tasteless noble gas. See also: Atomic Mass Number – Does it conserve in a nuclear reaction? Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 electrons in the atomic structure. Dysprosium is a chemical element with atomic number 66 which means there are 66 protons and 66 electrons in the atomic structure. Nickel is a silvery-white lustrous metal with a slight golden tinge. 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”. Our Website follows all legal requirements to protect your privacy. Cobalt is a chemical element with atomic number 27 which means there are 27 protons and 27 electrons in the atomic structure. Do a quick conversion: 1 moles Plutonium = 244 gram using the molecular weight calculator and the molar mass of Pu. Atomic mass of Plutonium is 244 u. The chemical symbol for Osmium is Os. Thallium is a soft gray post-transition metal is not found free in nature. It is a noble metal and a member of the platinum group. Boron is a chemical element with atomic number 5 which means there are 5 protons and 5 electrons in the atomic structure. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Approximately 60–70% of thallium production is used in the electronics industry. Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table. 1) You may use almost everything for non-commercial and educational use. This equilibrium also known as “samarium 149 reservoir”, since all of this promethium must undergo a decay to samarium. Plutonium Pu-239(atomic mass=239.05216 u) undergoes alpha decay. Atomic mass of Plutonium is 244 u. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. in the form of kinetic energy of the alpha particle abd ignoring the recoil of the daughter nucleus, find the speed of the alpha particle. The atomic mass is the mass of an atom. The chemical symbol for Dysprosium is Dy. The density of plutonium-238 at room temperature is about 19.8 g/cc. Europium is a chemical element with atomic number 63 which means there are 63 protons and 63 electrons in the atomic structure. Scientists knew that the most common isotope, uranium 238, was not suitable for a nuclear weapon. The chemical symbol for Niobium is Nb. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Plutonium and all elements of higher atomic number are radiological poisons because of their high rate of alpha emission and their specific absorption in bone marrow. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. 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. Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. Praseodymium is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured gas. It is usually alloyed with small amounts of gallium. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. Neon is a chemical element with atomic number 10 which means there are 10 protons and 10 electrons in the atomic structure. Titanium is a chemical element with atomic number 22 which means there are 22 protons and 22 electrons in the atomic structure. The most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds. Cerium is a chemical element with atomic number 58 which means there are 58 protons and 58 electrons in the atomic structure. The chemical symbol for Argon is Ar. By far of greatest importance is the isotope 239 Pu, which has a half-life of more than 20000 years. Silver is a chemical element with atomic number 47 which means there are 47 protons and 47 electrons in the atomic structure. There are two reasons for the difference between mass number and isotopic mass, known as the mass defect: Note that, it was found the rest mass of an atomic nucleus is measurably smaller than the sum of the rest masses of its constituent protons, neutrons and electrons. The chemical symbol for Silver is Ag. The chemical symbol for Titanium is Ti. 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 shape of the mass … Neutron number is rarely written explicitly in nuclide symbol notation, but appears as a subscript to the right of the element symbol. Krypton is a member of group 18 (noble gases) elements. Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 electrons in the atomic structure. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. The first atomic bomb used in war had a uranium core and was dropped on Hiroshima, Japan on August 6, 1945. The chemical symbol for Beryllium is Be. Atomic Mass Number – Does it conserve in a nuclear reaction? It rarely occurs in its elemental state or as pure ore compounds in the Earth’s crust. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. The chemical symbol for Selenium is Se. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. Neodymium is a soft silvery metal that tarnishes in air. 2) You may not distribute or commercially exploit the content, especially on another website. Plutonium is the second transuranic element with an atomic number of 94 and part of the actinide group of the periodic table. The chemical symbol for Strontium is Sr. Strontium is an alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. 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