Tin vs Antimony

Side-by-side comparison of Tin (Sn, element 50) and Antimony (Sb, element 51) by atomic structure and physical properties.

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PropertySn Tin Sb Antimony
Atomic number5051
SymbolSnSb
NameTinAntimony
Categorypost-transition-metalmetalloid
Standard Atomic Weight118.71 u121.76 u
Period55
Group1415
Blockpp
Phase at STPSolidSolid
Electron configuration[Kr]4d105s25p2[Kr]4d105s25p3
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.962.05
Electron affinity1.112 eV1.047401 eV
Density7287 kg/m³6685 kg/m³
Melting point231.93 °C630.63 °C
Boiling point2601.85 °C1586.85 °C
Discovery yearN/A1707

Key Differences

PropertySn TinSb Antimony
Standard Atomic Weight118.71 u ↓ lower121.76 u ↑ higher
Density7287 kg/m³ ↑ higher6685 kg/m³ ↓ lower
Melting point231.93 °C ↓ lower630.63 °C ↑ higher
Boiling point2601.85 °C ↑ higher1586.85 °C ↓ lower
Electronegativity (Pauling)1.96 ↓ lower2.05 ↑ higher
Electron affinity1.112 eV ↑ higher1.047401 eV ↓ lower
Group14 15
Categorypost-transition-metal metalloid
Electron configuration[Kr]4d105s25p2 [Kr]4d105s25p3