What chemical element could youe xpect tio find in amino acids

alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain

Explanation:

The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain (see below). What 3 structural groups do all amino acids have in common?

can you list the answers so i can answer