Module 16 Part D: (Methyl/Primary Carbons)
Sample Test Item: D. Recognition of 1^o, 2^o, 3^o, 4^o carbons & 1^o, 2^o, 3^o hydrogen (Lecture)

A Primary Carbon Atom (1^o) is a carbon atom in a carbon chain which is attached to one other carbon atom. It terminates the chain.

A Methyl Carbon Atom (0^o) is a stand alone carbon atom, Not in a carbon chain.

A Primary Hydrogen atom (1^o) is a hydrogen atom attached to a primary carbon atom.

A Methyl Hydrogen atom is attached to a methyl hydrogen atom.