Alle o comprehensive Science 3 Q4 Part
His a chemical
and Hy is a chemical
symbol
formula
code

It's a

☆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

B"hf and f-"  is the correct answer took the test on edgenuity and got it right