Given that an atom X has 12protons and 12electrons.
Itloses 2 electrons to form an ion
We need to find the charge and the number of protons and electrons after formation of ions
When the atoms loses 2 electrons then the atom comprises of 10 electrons.
Hence the ion will have
Charge: two-unit positive charge
No. of proton = 12
No. of electron = 10
Valency = 2
Valence electron = 12