What is the mass number of an element that has 21 protons, 21 electrons, and 22 neutrons?

asked Mar 1, 2023 104k views

24 votes

What is the mass number of an element that has 21 protons, 21 electrons, and 22
neutrons?

by Star

3.6k points

Please log in or register to add a comment.

12 votes

Answer:

Step-by-step explanation:

Mass number(M) = Proton number + Neutron number

M=21+22

M=43

Laziale answered Mar 6, 2023

3.1k points

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

3.4m questions

4.3m answers