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The outer electronic configuration of some elements are:a) 3s2 3p4b) 3d10 4s2 c) 3s2 3p6 4s2 d) 6s2 4f3 [predinct group and period

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Answer:

A) This element is Oxygen

2nd period 16th group

B) Zn

4th period 12th group

C) Ca

2nd group period 4th

D) Pr

Period 6th

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