Asked by Sally

Rank the ions in order of decreasing size.

Sr2+, Ba2+, Cs


Cs>Ba>Sr
Answered by DrBob222
Cs>Ba<sup>2+</sup>>Sr<sup>2+</sup> looks good to me.
Answered by Sally
What is the difference between atomic radius, and atomic size
Answered by DrBob222
I think of atomic size as the diameter or spherical size (volume) whereas the radius is 1/2 the diameter. The small periodic chart I have at home lists the volume.
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