Properties of the Elements
Boron
Chemical Symbol
B
Atomic Number
5
Electron Configuration
1s
2
2s
2
2p
1
Stable Phase at 298.15 K
hexagonal a variety of metastable forms exsist
Density (298 K)
2.83 g/cc
Atomic Mass
10.811
Young's Modulus, ksi
Melting Temperature, K
2300
Isotopes
Thermodynamic and Structural Data
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