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Correct statement is:
(1) K=4s1, Cr= 3d4 4s2, Cu= 3d10 4s2
(2) K=4s2, Cr= 3d4 4s2, Cu= 3d10 4s2
(3) K=4s2 Cr= 3d5 4s1, Cu= 3d10 4s2
(4) K=4s1, Cr= 3d5 4s1, Cu= 3d10 4s1
Ans: K=4s1, Cr= 3d5 4s1, Cu= 3d10 4s1
Explain the following observations: (i) Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition element
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qualitative analysis of cation
when n why rearrangement reaction occur?//
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what is chemistry
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