Question

11. Answer the following questions:
4x2 =8M
5) The electronic configuration of an atom is as follows: 1s22s22p 3s23p4s
3d.
a) Which elements atom is it?
b) Which orbital the last electron is?
c) Is the above written configuration correct?
d) Give reasons why there is single electron filled in 4s orbital?
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Answer 1

Explanation:

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Answer 2

Answer:

a) chromium

b) and d) yes