143,699 views
5 votes
5 votes
The mass of an atom may be found by adding the

O protons and neutrons
O molecules
o electrons and protons
O atoms

User Tkpl
by
2.4k points

1 Answer

15 votes
15 votes

Answer:

protons and neutrons

Step-by-step explanation:

User Vishesh Chandra
by
3.0k points