Arrange in terms of increasing atomic radius. From smallest to largest.
S, F, Sr, Na, Ga

F<S<Na<Ga<Sr

Explanation:

Atomic radius increased from the right of the periodic table to left, and from the top to the down

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.