The table compares some characteristics of two atoms.


"Charged Particles"
Atom Number of Neutrons Mass Number
X 4 7
Y 5 9


Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atoms.
A) Atoms X and Atom Y are in the same family.
B) Atom X is in a column to the right of Atom Y on the periodic table.
C) Atom X and Atom Y are in the same row on the periodic table.
D) Atoms X and Atom Y are isotopes.