Question

question 4 5 pts what is an isotope? group of same elements with different number of neutrons isotope refers to a group of same elements with different number of electrons isotope refers to a group of same elements that have different number of atomic mass isotopes refers to a group of same elements with different number of protons

Explanation:

Isotopes are defined as atoms of the same element that have the same number of protons but different numbers of neutrons. This results in different atomic masses. Electrons are related to ions (not isotopes), and protons define the element itself so cannot vary for the same - element isotopes.

Answer:

A. group of same elements with different number of neutrons