Which ion has the smaller atomic radius?

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Which ion has the smaller atomic radius?

K + or O 2-

2006-10-10 15:05:01 · 2 answers · asked by Th_hT 1 in Science & Mathematics ➔ Chemistry

2 answers

Hey!!, why are you so eager to know these things? This is a tricky question. It is O2-, due to the fact that even if cations have small radius and anions big ones, K has a very large radius when it is neutral, and O a rather small one. O2- has a radius of 1,40 Angstroms and K+ a radius of 1,33 Angstroms.

2006-10-10 15:16:38 · answer #1 · answered by Anonymous · 0⤊ 0⤋

2006-10-10 22:07:10 · answer #2 · answered by Greg G 5 · 0⤊ 0⤋