1. Is the number of proton and electron the same in Chlorine atom?
2. What is the charge of Chlorine atom if you subtract the number of electrons and
the number of protons?
3. Is the number of proton and electron the same in Chlorine ion?
4. What is the charge of Chlorine ion if you subtract number of protons to the number
of electrons?
5. When does a charge become -1: when an atom gains 1 or losses 1 electron?​