atomic number 86

Noun

atomic number 86 - 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

radon, Rn

chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter

argonon, inert gas, noble gas - any of the chemically inert gaseous elements of the helium group in the periodic table

<< Previous

Word Browser

Next >>

atomic number 62
atomic number 63
atomic number 64
atomic number 65
atomic number 66
atomic number 67
atomic number 68
atomic number 69
atomic number 7
atomic number 70
atomic number 71

atomic number 72
atomic number 73
atomic number 74
atomic number 75
atomic number 76
atomic number 77
atomic number 78
atomic number 79
atomic number 8
atomic number 80
atomic number 81

atomic number 82
atomic number 83
atomic number 84
atomic number 85
atomic number 87
atomic number 88
atomic number 89
atomic number 9
atomic number 90
atomic number 91
atomic number 92

atomic number 93
atomic number 94
atomic number 95
atomic number 96
atomic number 97
atomic number 98
atomic number 99
atomic physics
atomic pile
atomic power
atomic reactor