Question

If I have 12 neutrons and 11 protons what is the total atomic mass?

Answer 1

Answer:

23

Explanation:

Mass number is the total of the protons and neutrons together, and it is given the symbol A. Example: A sodium atom contains 11 protons and 12 neutrons; its mass number A is 23.

Answer 2

Answer:

23

Explanation:

atomic mass is the total of protons and neutrons therefore it's 23