Write down the electronic configuration of the following elements

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write down the electronic configuration of the following element's from the given atomic numbers. answer the following questions with explanation.3Li,14Si,2He,11Na15P which of these element's belong to be period 3?

Answered by admin @


Li=2,1
Si=2,8,4
He=2
Na=2,8,1
P=2,8,5

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