Question

An atom has atomic number 11 and mass number 23. How many electrons does the atom have? 23 22 12 11

Answer 1

Since it has an atomic number of 11 it must have 11 protons. Since it has an atomic mass of 23 it must have 12 neutrons. If it is electrically neutral, it will have 11 electrons.

Answer 2

Answer:

11

Explanation: