188. C "This process of ionization occurs around us every day. "
189.C
190.
191.A
192.D
193.B. "When an atom picks up a stray electron, it has one additional negative charge that is not offset by a corresponding positive charge. " . stray=free
194.
195.
196.
197.B. "One of the most noticeable effects of ionization is lightning. "
