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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: user100 on September 30, 2012, 02:51:26 AM

Title: Question about electron configuration of Ru(II)
Post by: user100 on September 30, 2012, 02:51:26 AM

It should be [Kr] 4d4 5s2 or [Kr]4d6?

I think it should be 4d6, becasue 4d shell should fill up first because energy level is lower. Is it correct? if not, why?

Title: Re: Question about electron configuration of Ru(II)
Post by: Hunter2 on September 30, 2012, 05:25:18 AM

[Kr] 4d6  is correct for the Ru²⁺