Which of the following is not a heteroatom?
A) O
B) N
C) P
D) A and B
E) All of the above are heteroatoms.
Question 2
What atom in the hydronium ion, H3O, bears the positive charge?
A) the hydrogen atom
B) the oxygen atom
C) Neither atom bears a positive charge.
D) Hydrogen and oxygen equally share the positive charge.