158k views
4 votes
Isotopes of an element differ in the composition of the nucleus. The varying numbers of __________ cause the ___________ of each isotope to also vary.

User Fesler
by
7.1k points

2 Answers

1 vote
Isotopes vary in the number of neutrons, and thus, the atomic mass varies also since neutron mass is significant.
User Priboyd
by
6.9k points
6 votes

The answer is neutrons, mass number I just had this on a test.

User Mcneil
by
7.0k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.