chemistry 3rd lesson miss b

a level chemistry 

electron configurations:

• each of the principal energy levels subdidvide further into electronic sub-levels. 
• 4 types: S,P,D,F
• each sub shell is made  up of orbitals
• orbitals can hold 2 electrons
• the 2 electrons in each orbital spin in opposite directions
• AN S SUB-LEVEL CONTAINS ONE ORBITAL
• A P SUB-LEVEL CONTAINS THREE ORBITALS
• A D SUB-LEVEL COTAINS FIVE ORBITALS

level 1: single S-orbital (1s)

level 2: s and p-orbital (2s, 2p)

level 3: s, p, d orbitals (3s, 3p, 3d)

• the order s which…