Calculate the number of moles of Cu produced when the reactants proceeds to completion

No multiple choices?

☆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

Ibelieve it is b. proton.hope my answer has you : )

Answer (b) supersaturation;