Nitrogen-14 and nitrogen-15 are isotopes. Nitrogen-15 is used to determine protein structure. Which of the following is true?
a. Nitrogen-15 has more protons than nitrogen-14.
b. Nitrogen-15 has more neutrons than nitrogen-14.
c. Nitrogen-15 has more electrons than nitrogen-14.
d. Nitrogen-15 has an electronic configuration that is different from that of nitrogen-14.
e. Nitrogen-15 has an equal number of protons and neutrons.
Answer: B