Question

Two atoms of the same substance with different numbers of neutrons are called what

A) Quarks
B)Isotopes
C)Protons
D)Ions

Answer 1

Hi!

Atoms which contain the same number of electrons and protons, but differ in a number of neutrons are known as isotopes. 

Hopefully, this helps! =)

Answer 2

The answer is B) Isotopes
Hope it helps :)