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certain elements have variable valencies,on which to concider?

Tanvi Sutar , 9 Years ago
Grade 10
anser 1 Answers
Kamlesh Kumar

Last Activity: 8 Years ago

Trasition elements have two outer shells in complete because of this these elements show variable valencies during formation of molecules .
both ns&[n-1]d electrons can participate in bond formation .

e.g 24Cr – 1s2,2s22p6,3s23p6 ,4s1,3d5
Cr has 6 unpaired electrons each can form bonds.


with regards
askiiTians
kamlesh kumar

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