Science & Engineering

Chemical Elements Properties

Physical properties of common elements — melting, boiling, density, and key uses.

Selected elements

ZNameSymbolMelting (°C)Boiling (°C)Density (g/cm³)Notes
1HydrogenH−259.16−252.870.00009Lightest, fuel
2HeliumHe−272.20−268.930.00018Noble, inert
6CarbonC355048272.267Diamond, graphite, life
7NitrogenN−210−1960.0012578% of air
8OxygenO−218.8−1830.00143Combustion, respiration
11SodiumNa97.88830.971Reacts violently with water
13AluminumAl660.324702.70Lightweight structural
14SiliconSi141432652.33Semiconductors, glass
26IronFe153828627.874Steel, magnetic
29CopperCu1084.625628.96Electrical conductor
47SilverAg961.8216210.49Best electrical conductor
50TinSn231.926027.287Solder
74TungstenW3422555519.25Highest melting point metal
78PlatinumPt1768.3382521.45Catalyst, jewelry
79GoldAu1064.2285619.30Inert, malleable
80MercuryHg−38.83356.713.534Liquid at room temp; toxic
82LeadPb327.5174911.34Battery, shielding
92UraniumU1135413119.1Nuclear fuel

Notes

  • Values are at standard temperature/pressure unless otherwise noted.
  • Many elements have multiple allotropes (carbon = diamond, graphite, fullerenes) with different properties.
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