14

Silicio – SiliconMass: 28.08 u1s2 2s2 2p6 3s2 3p2

Melting point: 1687 KBoiling point: 3538 KDensity: 2.3 g/cm3

Discovery: Berzelius (1823)Silicon, metalloid, is a chemical element with the symbol Si and

atomic number 14. It is less reactive than its chemical analog Carbon,but more reactive than Germanium. Its english final name, first suggested in 1817, reflects the more physically similar elements Carbon and Boron.Silicon is the second most abundant element in the Earth's crust (about 28% by mass) after Oxygen.