Periodic Table of Elements showing Krypton noble gas elements


Atomic Number36
Molar Mass83.8 gmol-1
Electron Configuration[Ar]3d104s24p6
Normal Stategas/nonmetal
Density @STP3.74x10-3 g cm-3
Melting Point-157oC
Boiling Point-153oC
Stable Isotopes79Kr, 80Kr, 82Kr, 83Kr, 84Kr, 86Kr
Atomic Radiusn/a pm
Ionic Radius169 (1+) pm
Electronegativity (Pauling)n/a
Ionization Energy (1st)1351 kJ mol-1
Ionization Energy (2nd)2350 kJ mol-1
Ionization Energy (3rd)3565 kJ mol-1
Molar Heat Capacity20.8 J K-1mol-1
Standard Molar Entropy164.1 J K-1mol-1
Enthalpy of Fusion1.64 kJ mol-1
Enthalpy of Vapourization9.05 kJ mol-1
[Back to Periodic table]

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