Arsenic vs Strontium

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PropertyAs ArsenicSr Strontium
Atomic number3338
SymbolAsSr
NameArsenicStrontium
Categorymetalloidalkaline-earth-metal
Standard Atomic Weight74.921595 u87.62 u
Period45
Group152
Blockps
Phase at STPsolidsolid
Electron configuration[Ar]4s23d104p3[Kr]5s2
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][1, 2]
Electronegativity (Pauling)2.180.95
Electron affinity0.81 eV0.052 eV
Density5776 kg/m³2640 kg/m³
Melting point816.85 °C776.85 °C
Boiling point613.85 °C1381.85 °C
Discovery year12501792