124k views
23 votes
Which of these make up the mass of an atom?

User Zakinster
by
2.7k points

2 Answers

13 votes
It is protons I’m pretty sure I don’t think it would be neutrons
User Webelo
by
3.6k points
1 vote
protons and neutrons is the answer i think
User Thomas Auinger
by
3.1k points