Carbon vs Zirconium

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PropertyC CarbonZr Zirconium
Atomic number640
SymbolCZr
NameCarbonZirconium
Categorynonmetaltransition-metal
Standard Atomic Weight12.0106 u91.224 u
Period25
Group144
Blockps
Phase at STPsolidsolid
Electron configuration[He]2s22p2[Kr]5s24d2
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][1, 2, 3, 4]
Electronegativity (Pauling)2.551.33
Electron affinity1.2621 eV0.426 eV
Density2267 kg/m³6520 kg/m³
Melting point3549.85 °C1854.85 °C
Boiling point3824.85 °C4408.85 °C
Discovery year17971789