Latin name:
Silicium
English name:
Silicon
Year discovered:
1824
CAS Number:
CAS7440-21-3
Discovered by:
Jöns Jakob Berzelius
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Electron shell
K2 L8 M4 N0 O0 P0 Q0 R0
Electrons:14
Protons:14
Neutrons:14
Atomic number:
14
Atomic weight (Relative atomic mass):
28.0855(g/mol)
Density:
2.33 (g/cm³) (g/cm³)
Melting point:
1414.85°C = 2578.73°F = 1688.0K
Boiling point:
3265.0°C = 5909.0°F = 3538.15K
Phase:
Solid
Valence:
II, IV
Period:
3
Group:
IVA
Block:
p - block
Electron configuration:
[Ne]3s2 3p2
1s2 2s2 2p6 3s2 3p2
Oxidation states:
-4,-3,-2,-1,+1,+2,+3,+4
Ion charge:
----
The ionisation potential of an atom:
8.12 (eV)
Atomic radius:
132 (pm)
Van der Waals radius:
210 (pm)
Covalent radius:
111 (pm)
Electronegativity:
1.9
Valence:
II, IV
Electron affinity:
133.6 (kJ/mole)
Electrical conductivity:
1 ⋅ 107 (S/m)
Electrical type:
Semiconductor
Magnetic type:
Diamagnetism
Volume magnetic susceptibility:
-0.00000373
Mass magnetic susceptibility:
-0.0000000016
Molar magnetic susceptibility:
-4.49 ⋅ 10-11 (m³/mol)
Resistivity:
0.001 (mΩ)
Superconducting point:
----
Crystal structure:
Face-centered diamond-cubic
Grid parameters:
5.4307 Ã…
Attitude c/a :
----
Crystal structure:
Face-centered diamond-cubic
Grid parameters:
5.4307 Ã…
Attitude c/a :
----
Debye temperature:
371.85°C = 701.33°F = 645.0K
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