Question

An element with an atomic number of 11 and an atomic mass of 23 will have how many neutrons total?

Answer 1

Hey there!

The atomic mass is the sum of protons and neutrons.

So 11 + n = 23.

Solve for n.

11 - 11 + n = 23 - 11

n = 12

The element will have 12 neutrons.

Hope this helps!