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September 23, 2014

Homework Help: CHEM HELP ANYONE ASAP

Posted by Lina on Wednesday, October 31, 2012 at 3:54am.

Arrange the members of the following set of cations in order of increasing ionic radii:

Sr2+
Ba2+
Rb+
K+
I understand that Sr2+ = 132 pm
Ba2+ = 149 pm
Rb+ = 166 pm
K+ = 152 pm

increasing ionic radii ....Sr2+ , Ba2+ , K+, Rb+
But the its not going in online as correct

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