Which radioisotope is used to treat thyroid disorders?
(1) co-60 (3) c-14
(2) i-131 (4) u-238

Niye yedi puan mal oglu mal

☆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 : )

Ibelieve the answer is d. titaniumhope my answer has you : )