Question

In an element ‘X’, 5th electron of third shell is its last electron. In another element ‘Y’, 7th electron of third shell is its last electron. Identify ‘X’ and ‘Y’.

Answer 1

Answer:

X is phosphorus and Y is Chlorine.

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Answer 2

Answer:

X is phosphorus and y is chlorine

Explanation:

first' to answer this question u need to get at least 20 elements

in the question it was given that x is a element whose 2 shells are filled and 3 rd shell contains 5 electrons so the electronic configuration of phosphorus is 2 ,8,5 so it is x

and similarly the electronic configuration of y ie chlorine is 2,8,7 so t us x is phosphorus and y is chlorine

hope it helps u buddy