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Write down the electronic configuration of the following elements from the given atomic numbers. Answer the following question with explanation.

d.4Be,  6C, 8O, 5B, 13Al  Which is the most electropositive element among these?

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4Be,  6C, 8O, 5B, 13Al

elements and thier electronic configuration :

4Be=2,2

  6C=2,4

8O=2,6

 5B=2,5

 13Al=2,8,3

The most electropositive element is 13Al electropositivity increases down a group while it decreases moving across a period from left to the right

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