Rank the following from smallest to largest atomic/ionic radius. A). Na+, Na, Na-

B). C, N, O

C). Cl, Ar, K

D). Be, Mg, Ca

Na+<Na< Na- (r- > r > r+)

B)O<N<C (The atomic radius of atoms generally decreases from left to right across a period)

C)Ar<cl<K

D)Be<Mg<Ca (generallydown the group atomic radius increases)

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence