chemical element
Noun
-
is a type of: substance - the real physical matter of which a person or thing consistssubtypes:
- allotrope - a structurally different form of an element
- transuranic element - any element having an atomic number greater than 92 (which is the atomic number of uranium); all are radioactive
- argonon, inert gas, noble gas - any of the chemically inert gaseous elements of the helium group in the periodic table
- metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
- nonmetal - a chemical element lacking typical metallic properties
- transactinide - any of the artificially produced elements with atomic numbers greater than 103
- ac, actinium, atomic number 89 - a radioactive element of the actinide series; found in uranium ores
- ar, argon, atomic number 18 - a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
- arsenic, as, atomic number 33 - a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
- astatine, at, atomic number 85 - a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
- atomic number 107, bh, bohrium, element 107 - a transuranic element
- atomic number 5, b, boron - a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
- atomic number 35, br, bromine - a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water
- atomic number 6, c, carbon - an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
- atomic number 17, chlorine, cl - a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
- atomic number 110, darmstadtium, ds, element 110 - a radioactive transuranic element
- atomic number 105, db, dubnium, element 105, hahnium - a transuranic element
- atomic number 9, f, fluorine - a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
- atomic number 32, ge, germanium - a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite
- atomic number 108, element 108, hassium, hs - a radioactive transuranic element
- atomic number 2, he, helium - a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
- atomic number 1, h, hydrogen - a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
- atomic number 53, i, iodin, iodine - a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)
- atomic number 36, kr, krypton - a colorless element that is one of the six inert gasses; occurs in trace amounts in air
- atomic number 103, lawrencium, lr - a radioactive transuranic element synthesized from californium
- atomic number 109, element 109, meitnerium, mt - a radioactive transuranic element
- atomic number 101, md, mendelevium, mv - a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)
- atomic number 10, ne, neon - a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
- atomic number 7, n, nitrogen - a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
- atomic number 102, no, nobelium - a radioactive transuranic element synthesized by bombarding curium with carbon ions; 7 isotopes are known
- atomic number 8, o, oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
- atomic number 15, p, phosphorus - a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
- atomic number 94, plutonium, pu - a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
- atomic number 86, radon, rn - a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
- atomic number 111, element 111, rg, roentgenium - a radioactive transuranic element
- atomic number 104, element 104, rf, rutherfordium, unnilquadium, unq - a radioactive transuranic element which has been synthesized
- atomic number 106, element 106, seaborgium, sg - a transuranic element
- atomic number 34, se, selenium - a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
- atomic number 14, si, silicon - a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
- atomic number 16, s, sulfur, sulphur - an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
- atomic number 52, te, tellurium - a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold
- atomic number 112, element 112, ununbium, uub - a radioactive transuranic element
- atomic number 116, element 116, ununhexium, uuh - a radioactive transuranic element
- atomic number 115, element 115, ununpentium, uup - a radioactive transuranic element
- atomic number 114, element 114, ununquadium, uuq - a radioactive transuranic element
- atomic number 113, element 113, ununtrium, uut - a radioactive transuranic element
- atomic number 54, xe, xenon - a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts
- trace element - an element that occurs at very small quantities in the body but is nonetheless important for many biological processes
has: atom - (physics and chemistry) the smallest component of an element having the chemical properties of the elementsame as: element
Found on Word Lists
Other Searches
- Rhyme: Dillfrog, RhymeZone
- Definition: Wiktionary, Dictionary.com, Wikipedia, Merriam-Webster, WordNet, Power Thesaurus
- Imagery: Google, Flickr, Bing