Potassium vs Molybdenum

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PropertyK PotassiumMo Molybdenum
Atomic number1942
SymbolKMo
NamePotassiumMolybdenum
Categoryalkali-metaltransition-metal
Standard Atomic Weight39.0983 u95.95 u
Period45
Group16
Blockss
Phase at STPsolidsolid
Electron configuration[Ar]4s1[Kr]5s14d5
Oxidation states[-1, 1][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)0.822.16
Electron affinity0.5014 eV0.744 eV
Density890 kg/m³1.020000e+4 kg/m³
Melting point63.38 °C2622.85 °C
Boiling point758.85 °C4638.85 °C
Discovery year18071778