Electronic structure

• How many electrons can be held in 1 shell

  2
• How electrons can be held by 2 shells

  8
• How many electrons can be held in 3 shells

  18
• How many electrons can be held in 4 shells

  32
• How many electrons can be held in 5 shells

  50
• How do you work out the number of electrons per shell

  you times 2 by the number of shell that’s been squared
• Atomic orbital

  A region in space that can hold 2c in opposite spin
• Electron configuration

  1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6