Element Name: Krypton
Atomic No.: 36
State (298 K): gas
Uses: lighting & wavelength is meter standard
Atomic Mass: 83.80 g/mol
Density: 3.75 g/L
B.P.: 120.9 K
F.P.: 116.6 K
Electronic Configuration: 1s
2
2s
2
2p
6
3s
2
3p
6
3d
10
4s
2
4p
6
Isotopes:
78
Kr 77.920 amu (0.35%)
80
Kr 79.916 amu (2.25%)
82
Kr 81.913 amu (11.6%)
p;
83
Kr 82.914 amu (11.5%)
84
Kr 83.912 amu (57.0%)
86
Kr 85.911 amu (17.3%)
Electronegativity: ?
Radius: 189 pm (covalent)
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