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


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

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


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

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