Question

How many neutrons are there in the neutral atom of 20 10Ne? 1. 22 2. 20 3. 12 4. 9 5. 10

Answer 1

Answer:

3.) 12

Explanation:

an atomic number is 11 which means this atom will have 11 protons. the atomic mass is 23 which also means 23-11 is 12 neurons.