| chromium radioisotopes | Unstable isotopes of chromium that decay or disintegrate emitting radiation. Cr atoms with atomic weights of 46-49, 51, 55, and 56 are radioactive chromium isotopes. (12 Dec 1998) |
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| chromium | <chemical> A trace element that plays a role in glucose metabolism. It has the atomic symbol cr, atomic number 24, and atomic weight 52. According to the fourth annual report on carcinogens (ntp85-002,1985), chromium and some of its compounds have been listed as known carcinogens. Chemical name: Chromium (12 Dec 1998) |
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| chromium alloys | Specific alloys not less than 85% chromium and nickel or cobalt, with traces of either nickel or cobalt, molybdenum, and other substances. They are used in partial dentures, orthopedic implants, etc. (12 Dec 1998) |
| chromium compounds | Inorganic compounds that contain chromium as an integral part of the molecule. (12 Dec 1998) |
| chromium isotopes | Stable chromium atoms that have the same atomic number as the element chromium, but differ in atomic weight. Cr-50, 53, and 54 are stable chromium isotopes. (12 Dec 1998) |
| chromium(VI) reductase | <enzyme> Nad(p)h-dependent enzyme from pseudomonas ambigua reduces cr(vi) to cr(iii) with at least two reaction steps via cr(v) as an intermediate Registry number: EC 1.16.1.- Synonym: cr(vi) reductase (26 Jun 1999) |
| barium radioisotopes | Unstable isotopes of barium that decay or disintegrate emitting radiation. Ba atoms with atomic weights 126-129, 131, 133, and 139-143 are radioactive barium isotopes. (12 Dec 1998) |
| bromine radioisotopes | Unstable isotopes of bromine that decay or disintegrate emitting radiation. Br atoms with atomic weights 74-78, 80, and 82-90 are radioactive bromine isotopes. (12 Dec 1998) |
| cadmium radioisotopes | Unstable isotopes of cadmium that decay or disintegrate emitting radiation. Cd atoms with atomic weights 103-105, 107, 109, 115, and 117-119 are radioactive cadmium isotopes. (12 Dec 1998) |
| calcium radioisotopes | Unstable isotopes of calcium that decay or disintegrate emitting radiation. Ca atoms with atomic weights 39, 41, 45, 47, 49, and 50 are radioactive calcium isotopes. (12 Dec 1998) |
| carbon radioisotopes | Unstable isotopes of carbon that decay or disintegrate emitting radiation. C atoms with atomic weights 10, 11, and 14-16 are radioactive carbon isotopes. (12 Dec 1998) |
| gallium radioisotopes | Unstable isotopes of gallium that decay or disintegrate emitting radiation. Ga atoms with atomic weights 63-68, 70 and 72-76 are radioactive gallium isotopes. (12 Dec 1998) |
| radioisotopes | Isotopes that exhibit radioactivity and undergo radioactive decay. (12 Dec 1998) |
| cerium radioisotopes | Unstable isotopes of cerium that decay or disintegrate emitting radiation. Ce atoms with atomic weights 132-135, 137, 139, and 141-148 are radioactive cerium isotopes. (12 Dec 1998) |
| gold radioisotopes | Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes. (12 Dec 1998) |
| cesium radioisotopes | Unstable isotopes of cesium that decay or disintegrate emitting radiation. Cs atoms with atomic weights of 123, 125-132, and 134-145 are radioactive cesium isotopes. (12 Dec 1998) |