193k views
3 votes
If an atom contains 4 protons, 5 neutrons, and 4 electrons, its mass number is?​

1 Answer

4 votes
Answer is Mass number of
9
User Andriy Bilous
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.