101k views
3 votes
What makes up nearly all of the atom's mass?

A. The sum of all protons and neutrons
B. The sum of all neutrons and electrons
C. The sum of all protons and electrons
D. The sum of all isotopes
SUBMIT

User Sam Texas
by
5.2k points

2 Answers

5 votes
A the sum of all protons and neutron
User Hephaestus
by
5.3k points
4 votes

Answer:

a. the sum of all protons and neutrons

User ExxKA
by
5.3k points