14 Si
Metalloid
Silicon
Backbone of computer chips.
Properties of Silicon
- Atomic number (Z)
- 14
- Symbol
- Si
- Atomic mass
- 28.085 g/mol
- Category
- Metalloid
- Group
- 14
- Period
- 3
- Electron configuration
- [Ne] 3s² 3p²
- Electronegativity (Pauling)
- 1.9
- Atomic radius
- 111 pm
- First ionization energy
- 786 kJ/mol
- Melting point
- 1687 K (1413.8 °C)
- Boiling point
- 3538 K (3264.8 °C)
- Density
- 2.33 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1824
Frequently asked questions
What is Silicon?
Silicon (Si) is a metalloid, element number 14 on the periodic table. Backbone of computer chips.
What is the atomic number and atomic mass of Silicon?
Silicon has atomic number 14 and an atomic mass of about 28.085 g/mol.
What is the electron configuration of Silicon?
The electron configuration of Silicon is [Ne] 3s² 3p².
Where is Silicon on the periodic table?
Silicon sits in group 14, period 3, and is classified as a metalloid.