If 0. 278 g of argon dissolves in 1. 5 l of water at 62 bar.

1= c 2= a or d3 = idk sorry 4= c5= c

The air is going to come out because of the low pressure.

☆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