Answers

2015-02-20T21:14:23+05:30
The atomic no.of k=19
so E.C.,
k=2,l=8,m=8,n=1
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2015-02-20T21:15:54+05:30
[Ar] 4s1Potassium, Electron configuration of potassium                               plzmark my answer as the best 
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