Chromium vs Xenon

PropertyCr ChromiumXe Xenon
Atomic number2454
SymbolCrXe
NameChromiumXenon
Categorytransition-metalnoble-gas
Standard Atomic Weight51.9961 u131.293 u
Period45
Group618
Blocksp
Phase at STPsolidgas
Electron configuration[Ar]3d54s1[Kr]5s24d105p6
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4, 5, 6][0, 2, 4, 6, 8]
Electronegativity (Pauling)1.662.6
Electron affinity0.675 eV-0.8 eV
Density7150 kg/m³5.887 kg/m³
Melting point1906.85 °C-111.79 °C
Boiling point2670.85 °C-108.1 °C
Discovery year17971898