Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars. Atomic Number of Potassium Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. 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. The chemical symbol for Tellurium is Te. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. Potassium is a silvery-white, soft metal, easily cut with a knife. Density: 0.89 grams per cubic centimeter 5. It is the heaviest essential mineral nutrient. Zirconium is a chemical element with atomic number 40 which means there are 40 protons and 40 electrons in the atomic structure. Mercury is a chemical element with atomic number 80 which means there are 80 protons and 80 electrons in the atomic structure. Potassium-39 Please visit the Potassium element page for information specific to the chemical element of the periodic table. 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. Nobelium is the tenth transuranic element and is the penultimate member of the actinide series. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. The chemical symbol for Europium is Eu. It is silvery-white in color, waxy, and soft. Chemically, indium is similar to gallium and thallium. The chemical symbol for Sodium is Na. Copper is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. It is also the most corrosion-resistant metal, even at temperatures as high as 2000 °C. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. The first group of periodic table contains alkali metals. The chemical symbol for Nobelium is No. Iridium is a very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium). Thulium is the thirteenth and third-last element in the lanthanide series.    Crystal Structure, Element Groups: Potassium (atomic number 19, symbol K) is a metal and an important element in our diet. The chemical symbol for Aluminum is Al. About This Site Osmium is a hard, brittle, bluish-white transition metal in the platinum group that is found as a trace element in alloys, mostly in platinum ores. 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. The chemical symbol for Fermium is Fm. Number of Neutrons: 20. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. it has the symbol K. Potassium is a highly reactive metal in Group 1 of the periodic table. Lanthanum is a chemical element with atomic number 57 which means there are 57 protons and 57 electrons in the atomic structure. The chemical symbol for Bromine is Br. Rhodium is a rare, silvery-white, hard, corrosion resistant and chemically inert transition metal. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 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. For example, element 120 has the temporary name unbinilium. It is one of the most reactive & electropositive metals, and it is also the lightest element except lithium. The chemical symbol for Manganese is Mn. Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure.    Alkali Metals Osmium is the densest naturally occurring element, with a density of 22.59 g/cm3. It is by mass the most common element on Earth, forming much of Earth’s outer and inner core. The chemical symbol for Lead is Pb. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. The atomic mass of potassium is 39.098 atomic mass units. Potassium isotopes, mainly K-40 and K-41, are used to study the impact of potassium on the growth of plants and of the human cardiovascular system. The information contained in this website is for general information purposes only. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. It is denoted by the symbol ‘K’. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3. Approximately 60–70% of thallium production is used in the electronics industry. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. The chemical symbol for Ruthenium is Ru. The chemical symbol for Neptunium is Np. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. The chemical symbol for Technetium is Tc. Carbon is one of the few elements known since antiquity. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. Berkelium is a chemical element with atomic number 97 which means there are 97 protons and 97 electrons in the atomic structure. Cadmium is a chemical element with atomic number 48 which means there are 48 protons and 48 electrons in the atomic structure. Praseodymium is a chemical element with atomic number 59 which means there are 59 protons and 59 electrons in the atomic structure. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252. Potassium is the fourth element in the first column of the periodic table. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure.  Help The chemical symbol for Terbium is Tb. 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 chemical symbol for Lanthanum is La. It is a soft, silvery-white alkali metal. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. 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. 12) Potassium has one valence electron. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. 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 Molybdenum is Mo. The best answer to this question is not 39 amu, but it’s how to read the periodic table. The chemical symbol for Chlorine is Cl. 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