how to draw bohr rutherford, bohr and lewis diagrams

bohr ruther ford 18/2/25,

positioning of electrons

• at 3

• at 6

• at 9

• at 12

• always fill first 4 positions before starting pairs

• for Helium, draw the two as a pair (together) at the top or right

• in the first orbit, the two electrons will always be a pair at the top or right

how to draw bohr rutherford diagram looking at periodic table

• period # = # of shells

• group # = # of valence electrons (groups 1-8)

• first orbit : max 2 pairs

• all other orbits: max 18 electrons, 4 pairs

• nucleus: # P and # N written

how to draw bohr diagram looking at periodic table

• period # = # of shells

• group # = # of valence electrons (groups 1-8)

• first orbit : max 2 pairs

• all other orbits: max 18 electrons, 4 pairs

• nucelus: no cricle around it, just element symbol

how to draw lewis diagrams

• only includes valence electrons

• He is the only one where e is in a pair on the right, all other elements have them separated (fill first 4 positions before starting pairs)

• elements name in middle