Silicon or Si

• atomic number is 14

• atomic weight is 28.0855

• color is Gray

• state at 298.15°k is solid

• classification is Metalloid

• date of discovery is 1824

• density kg/m^3 is 2330

• melting point is 1683.15

• boiling point is ? 610 K

• group is Metalloid

• Number of neutron is 14