Information valid for Si-28 unless otherwise noted

Silicon

Basic Information

Symbol: Si
Atomic Number: 14
Mass: 28.0855
Melting Point: 1410.0 C
Boiling Point: 2355.0 C
Number of Protons/Electrons: 14
Number of Neutrons: 14
Classification: Metalloid
Crystal Structure: Cubic
Density @ 293 K: 2.329 g/cm³
Color: grey

Atomic Structure

Number of Energy Levels: 3 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 4

Isotopes

Facts

Date of Discovery: 1823
Discoverer: Jons Berzelius
Name Origin: From the Latin word silex (flint)
Uses: glass, semiconductors
Obtained From: Second most abundant element. Found in clay, granite, quartz, sand