Gold is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. The chemical symbol for Molybdenum is Mo. Hydrogen is also used in various industrial fields such as metalworking and as a coolant in generators in power stations. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. Chemically, indium is similar to gallium and thallium. The chemical symbol for Neodymium is Nd. 16. Symbol: H; atomic weight: 1.00797; atomic number: 1; density: 0.0899 grams/liter at 0°C and 760 millimeters pressure. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. 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. Melting Point: -259.14 °C (14.009985 K, -434.45203 °F) Boiling Point: -252.87 °C (20.280005 K, -423.166 °F) Number of Protons/Electrons: 1. Cerium is the second element in the lanthanide series. Mercury is commonly known as quicksilver and was formerly named hydrargyrum. The chemical symbol for Ytterbium is Yb. Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. Hydrogen is mostly used in the petroleum and chemical industries. Indeed, atomic hydrogen is the most crucial component in the gas-phase mixture, which drives the whole chemical process and performs a number of important functions [33], such as: • Atomic H can etch sp 2 carbon many times faster than sp 3 carbon; • It is a noble gas, non-metal and is the most abundant element in the universe. Nearly all technetium is produced synthetically, and only minute amounts are found in the Earth’s crust. State of Hydrogen is Gas at standard temperature and pressure However, this assumes the atom to exhibit a spherical shape, which is only obeyed for atoms in vacuum or free space. www.nuclear-power.net. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. al. Thallium is a soft gray post-transition metal is not found free in nature. The chemical symbol for Calcium is Ca. The chemical symbol for Nitrogen is N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earth’s atmosphere. Hydrogen boiling point is -252,9 °C. Furthermore, all isotopes of an element typically have the same number of protons and different number of neutrons. Francium is an alkali metal, that has one valence electron. 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 one proton and no neutrons. It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Yttrium is a chemical element with atomic number 39 which means there are 39 protons and 39 electrons in the atomic structure. Copper is a chemical element with atomic number 29 which means there are 29 protons and 29 electrons in the atomic structure. Hydrogen is the element that is atomic number 1 on the periodic table. 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. 2) You may not distribute or commercially exploit the content, especially on another website. Carbon is a chemical element with atomic number 6 which means there are 6 protons and 6 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. Plutonium is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. Thorium is commonly found in monazite sands (rare earth metals containing phosphate mineral). Mendelevium is a metallic radioactive transuranic element in the actinide series, it is the first element that currently cannot be produced in macroscopic quantities. The chemical symbol for Bromine is Br. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Nickel is a silvery-white lustrous metal with a slight golden tinge. Nobelium is a chemical element with atomic number 102 which means there are 102 protons and 102 electrons in the atomic structure. Krypton is a member of group 18 (noble gases) elements. Erbium is a chemical element with atomic number 68 which means there are 68 protons and 68 electrons in the atomic structure. Density is defined as the mass per unit volume. Silicon is a chemical element with atomic number 14 which means there are 14 protons and 14 electrons in the atomic structure. Although neodymium is classed as a rare earth, it is a fairly common element. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. The chemical symbol for Helium is He. Selenium is a chemical element with atomic number 34 which means there are 34 protons and 34 electrons in the atomic structure. Thulium is the thirteenth and third-last element in the lanthanide series. Melting point of Hydrogen in Kelvin is 14.01 K. Abundant value of Hydrogen is 1400 mg/kg. Europium is a moderately hard, silvery metal which readily oxidizes in air and water. Platinum is one of the least reactive metals. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. Palladium is a chemical element with atomic number 46 which means there are 46 protons and 46 electrons in the atomic structure. A hydrogen atom is an atom of the chemical element hydrogen.The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force. Neptunium metal is silvery and tarnishes when exposed to air. Titanium can be used in surface condensers. The most commonly used spontaneous fission neutron source is the radioactive isotope californium-252. The chemical symbol for Radium is Ra. 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. Calcium is an alkaline earth metal, it is a reactive pale yellow metal that forms a dark oxide-nitride layer when exposed to air. Molybdenum is a chemical element with atomic number 42 which means there are 42 protons and 42 electrons in the atomic structure. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. Only about 5×10−8% of all matter in the universe is europium. The classical description cannot be used to describe things on the atomic scale. (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. The most important use of hydrogen in the world is in ammonia manufacture for the fertilizer market. The chemical symbol for Gallium is Ga. Gallium has similarities to the other metals of the group, aluminium, indium, and thallium. Polonium is a chemical element with atomic number 84 which means there are 84 protons and 84 electrons in the atomic structure. The chemical symbol for Actinium is Ac. The chemical symbol for Iron is Fe. The chemical symbol for Gadolinium is Gd. Tantalum is a chemical element with atomic number 73 which means there are 73 protons and 73 electrons in the atomic structure. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 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. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. The chemical symbol for Thorium is Th. The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. It is also the most corrosion-resistant metal, even at temperatures as high as 2000 °C. It is a soft, silvery-white alkali metal. The chemical symbol for Beryllium is Be. Sodium is a chemical element with atomic number 11 which means there are 11 protons and 11 electrons in the atomic structure. The chemical symbol for Rubidium is Rb. 17. Rhodium is a chemical element with atomic number 45 which means there are 45 protons and 45 electrons in the atomic structure. Unstable subatomic particle. Germanium is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. Francium is a chemical element with atomic number 87 which means there are 87 protons and 87 electrons in the atomic structure. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. 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. The chemical symbol for Californium is Cf. The chemical symbol for Arsenic is As. These electrons together weigh only a fraction (let say 0.05%) of entire atom. Hydrogen: Elements by Name: Elements by Number: Home. Thulium is an easily workable metal with a bright silvery-gray luster. It has an estimated density of 40.7 x 103 kg/m3. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. The chemical symbol for Antimony is Sb. at 0℃ and one atmosphere pressure. In nuclear industry, especially artificial xenon 135 has a tremendous impact on the operation of a nuclear reactor. We use cookies to ensure that we give you the best experience on our website. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. Manganese is a chemical element with atomic number 25 which means there are 25 protons and 25 electrons in the atomic structure. The New York Times Mini Crossword is a mini version for the NYT Crossword and contains fewer clues then the main crossword. 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. The chemical symbol for Cerium is Ce. The chemical symbol for Manganese is Mn. 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. The chemical symbol for Niobium is Nb. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. Its extreme rarity in the Earth’s crust, comparable to that of platinum. Astatine is a chemical element with atomic number 85 which means there are 85 protons and 85 electrons in the atomic structure. Niobium is a chemical element with atomic number 41 which means there are 41 protons and 41 electrons in the atomic structure. Xenon is a colorless, dense, odorless noble gas found in the Earth’s atmosphere in trace amounts. is a rare earth element with a metallic silver luster. The metal is found in the Earth’s crust in the pure, free elemental form (“native silver”), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. This clue was last seen on New York Times Mini Crossword October 15 2020 Answers In case the clue doesn’t fit or there’s something […] The chemical symbol for Technetium is Tc. The chemical symbol for Neptunium is Np. Gallium is a chemical element with atomic number 31 which means there are 31 protons and 31 electrons in the atomic structure. Graphic courtesy of ChemicalElements.com Americium is a chemical element with atomic number 95 which means there are 95 protons and 95 electrons in the atomic structure. Gallium does not occur as a free element in nature, but as gallium(III) compounds in trace amounts in zinc ores and in bauxite. Hydrogen is a chemical element having the atomic number 1 and is given in the symbol H. An atom of hydrogen is composed of one proton and no neutrons in the nucleus; it has one electron in its 1s orbital. At the temperature in the gas discharge tube, more atoms are in the n = 3 than the n ≥ 4 levels. Hydrogen is the chemical element with the symbol H and atomic number 1. The wavefunction with n = 1, \(l\) \(l\) = 0 is called the 1s orbital, and an electron that is described by this function is said to be “in” the ls … ERNEST. Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. 113Cd has specific absorption cross-section. Curium is a hard, dense, silvery metal with a relatively high melting point and boiling point for an actinide. Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 electrons in the atomic structure. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. The chemical symbol for Uranium is U. Two types of molecular hydrogen (ortho and para) are known. The name of the gas is formed from two Greek words, meaning water and forming, so this is the element which creates water. Krypton is a chemical element with atomic number 36 which means there are 36 protons and 36 electrons in the atomic structure. Bismuth is a chemical element with atomic number 83 which means there are 83 protons and 83 electrons in the atomic structure. The chemical symbol for Aluminum is Al. 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. Commercially, thallium is produced as a byproduct from refining of heavy metal sulfide ores. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. Pure germanium is a semiconductor with an appearance similar to elemental silicon. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). The atomic mass of hydrogen is 1.00794 amu (atomic mass units). Chlorine is a yellow-green gas at room temperature. “Atomic number of hydrogen” We are sharing answer for NYT Mini Crossword of October 15 2020 for clue that we published below. The chemical symbol for Berkelium is Bk. 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. The chemical symbol for Scandium is Sc. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table. The chemical symbol for Ruthenium is Ru. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The chemical symbol for Rhenium is Re. The name xenon for this gas comes from the Greek word ξένον [xenon], neuter singular form of ξένος [xenos], meaning ‘foreign(er)’, ‘strange(r)’, or ‘guest’. Therefore, there are various non-equivalent definitions of atomic radius. The element number or atomic number is the number of protons present in the atom. The chemical symbol for Palladium is Pd. The chemical symbol for Hafnium is Hf. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. Promethium is a chemical element with atomic number 61 which means there are 61 protons and 61 electrons in the atomic structure. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. Neptunium is the first transuranic element. 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. Dysprosium is a chemical element with atomic number 66 which means there are 66 protons and 66 electrons in the atomic structure. If we include man made elements, the densest so far is Hassium. Oxygen is a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. As a result, the electron cloud contracts and the atomic radius decreases. 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