To Ionize the compound first of all we need to write in molecular formula. like for hydrochloride we need to write HCL.
Yes it can. http://physics.nist.gov/PhysRefData/Handbook/Tables/argontable6.htm
What is asubstance that can ionize?
Yes.
Ionization of an atom means that the atom has become either positively or negatively chargered, depending on whether it lost or gained electrons.