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HOME > Protocols > Reference Material > Periodic Table > Silicon

Silicon

Atomic Number: 14

Name: Silicon

Atomic symbol: Si

Atomic Weight: 28.0855

Electron affinity: -134 kJ/mol

Electron configuration: 1s22s22p63s23p2

Ionization energies: 786 kJ/mol

Pauling electronegativity: 1.8

Melting Point: 1410oC

Boiling Point: 2355oC

Density: 2.33 g/cm3

Covalent radius: 1.17 angstroms

Ionic radius: 2.71 angstroms (-4); 3.84 angstroms (-1); 0.65 angstroms (+1); 0.42 angstroms (+4)

Common oxidation states in compounds: -4, +4

Previous: Atomic Number 13 - Aluminum


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