Question

The explanation for the fact that radioactive isotopes of an element exhibit the same chemical behavior as the stable isotopes of the element is that each has the same:

A) Atomic number
B) Number of neutrons
C) Mass number
D) Atomic weight

Answer 1

Isotopes of an element exhibit the same chemical behavior as stable isotopes because they have the same atomic number.

Step-by-step explanation:

Isotopes are atoms of the same element that contain different numbers of neutrons. The chemical behavior of isotopes is determined by the number of protons and electrons, which is the same for all isotopes of an element. Therefore, radioactive isotopes of an element exhibit the same chemical behavior as the stable isotopes of the element because they have the same atomic number (A).