(60 points + brain list) The correct electron configuration of the O2-ion is A)
2-4
B)
2-5
C)
2-7
D)
2-8

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.