79.5k views
18 votes
Please help! This one is easy, I just forgot! Multiple choice!

Please help! This one is easy, I just forgot! Multiple choice!-example-1
User Lineil
by
8.3k points

2 Answers

8 votes
It’s the mass number
User Flashpunk
by
8.5k points
4 votes
the answer is D. the mass number
User MikiBelavista
by
8.7k points