# of lone pairs and bonds on C, N, O

Carbon with a positive formal charge

0 lone pairs, 3 bonds (CPZ: Carbon thats Positive has Zero lone pairs) because it has only 3 valence electrons

Carbon with neutral formal charge

0

Carbon with a negative formal charge

1 lone pair, 3 bonds (CON: C has One lone pair if Negative. Con = bad = negative)

Oxygen with a negative formal charge

3 lone pairs, 1 bond (ONTH: Oxygen with a Negative charge has THree lone pairs. march is the 3rd mONTH)

Oxygen with neutral formal charge

2 lone pairs, 2 bonds (NOT: Negative Oxygen has Two lone pairs. None = not = no charge)

Oxygen with a positive formal charge

1 lone pair, 3 bonds (POO: Positive Oxygen has One lone pair)

Nitrogen with a positive formal charge

0 lone pairs, 4 bonds (NPZ: Nitrogen with a Positive charge has Zero lone pairs)

Nitrogen with a neutral formal charge

1 lone pair, 3 bonds (NON: Nitrogen has One lone pair if Neutral. Non = nothing = neutral)

Nitrogen with a negative formal charge

2 lone pairs, 2 bonds (TNN: Two lone pairs on Nitrogen with a Negative formal charge. TNN sounds like cnn which is a bad (negative) source of info like basically every news source is)