If 5 mol of oxygen gas (M = 32 g/mol) effuses through an opening in 10 seconds, how long will it take for the same amount of hydrogen gas
(M = 2 g/mol) to effuse under the same conditions?

☆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

Are you going to give an example of the plant or?

I’m not sure about this question