14

Si

Silicon
28.0855 (3)
 Historical Information

Jans Jacob Berzelius is generally credited with the discovery of silicon in 1824. Deville prepared crystalline silicon in 1854, a second allotropic form of the element.

Basic Information Shells
  • Name:Silicon
  • Symbol: Si
  • Atomic number: 14
  • Atomic weight:28.0855 (3)
  • Standard state: solid at 298 K
  • Group in periodic table: 14
  • Group name: none
  • Period in periodic table: 3
  • Block in periodic table: p-block
  • Classification: Semi-metallic
 silicon
Uses Trivia
  • computer chips
  • lubricants
  • used to make concrete and bricks
  • used in medicine for silicone implants

Silicon is important in plant and animal life. Diatoms in both fresh and salt water extract silica from the water to use as a component of their cell walls. Silicon is an important ingredient in steel.