Properties of the Elements
Calcium
Chemical Symbol
Ca
Atomic Number
20
Electron Configuration
[Ar]4s
2
Stable Phase at 298.15 K
hexagonal close-packed
Density (298 K)
1.88 g/cc
Atomic Mass
40.08
Young's Modulus, GPa
19.6
Melting Temperature, K
1112
Boiling Temperature, K
1757
Thermodynamic and Structural Data
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