How many protons and electrons are present in o²⁻? a) 8 protons and 8 electrons b) 10 protons and 8 electrons c) 8 protons and 10 electrons d) 16 protons and 8 electrons e) none of the above

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

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