<u>Answer:</u> The number of protons and electrons in the given ion are 8, 10 respectively.
<u>Explanation:</u>
Atomic number is defined as the number of protons or electrons that are present in a neutral atom.
Atomic number = number of protons = number of electrons
For the given representation of ion, which is: 
We are given:
Atomic number = Number of protons = 8
Charge on the ion = -2
Number of electrons = Number of protons - charge = 8 - (-2) = 10
Hence, the number of protons and electrons in the given ion are 8, 10 respectively.