14
28.085 u
Si
Silicon
Metalloid
Atomic Structure
Physical State
Group
14
Period
3
Block
p
Electron Configuration
[Ne] 3s² 3p²
Physical Properties
Atomic Mass:
28.085 u
Electronegativity:
1.9
Atomic Radius:
210 pm
Ionization Energy:
8.152 eV
Density:
2.33 g/cm³
Melting Point:
1687 K
Boiling Point:
3538 K
Historical Information
Discovered By:
Jöns Jacob Berzelius
Year Discovered:
1824