Question

what is the atomic number if an atom has electron-10 proton-9 neutrons-8​

Answer 1

Answer:

We mainly look the number of protons to find the atomic number rather than the number of electtons.This atom is an ion, so we should look the number of proton itself.

So the atomic number is 9

Answer 2

Answer:

atomic no. = 9

Explanation:

atomic no.= no.of protons