Krypton
Symbol
Kr
Atomic Number
36
Atomic Weight
83.8
Element Classification
Discovered By
Sir William Ramsey, M.W. Travers
Discovery Date
1898 (Great Britain)
Name Origin
Greek: kryptos (hidden).
Density (g/cc)
2.155 (@ -153°C)
Melting Point (K)
116.6
Boiling Point (K)
120.85
Appearance
Dense, colorless, odorless, and tasteless gas
Atomic Radius (pm)
n/a
Atomic Volume (cc/mol)
32.2
Covalent Radius (pm)
112
Ionic Radius
n/a
Specific Heat
0.247
Fusion Heat (kJ/mol)
n/a
Evaporation Heat (kJ/mol)
9.05
Thermal Conductivity (@25°C W/m K)
0.0095
Debye Temperature (K)
n/a
Pauling Negativity Number
0.0
First Ionizing Energy (kJ/mol)
1350.0
Oxidation States
2
Electronic Configuration
[Ar] 3d10 4s2 4p6
Lattice Structure
Face-Centered Cubic(FCC)
Lattice Constant
5.720
Lattice C/A Ratio
n/a
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