Isotopes of an element differ from each other in the number of
A. protons in the nucleus
B. neutrons in the nucleus
C. electrons in the outer shells
D. a, b, and c are all correct
Answer:B
Isotopes of an element differ from each other in the number of
A. protons in the nucleus B. neutrons in the nucleus C. electrons in the outer shells D. a, b, and c are all correct