Question

The atomic number of an element Y is 17. It's electronic configuration is:
A. 2,6,8,1
B. 2,5,10
C. 2,8,7
D. 2,8,5,2​

Answer 1

Answer:

option C is your answer

Answer 2

Answer:

The correct answer is option C 2,8,7

Explanation:

Because due the laws of configuration of electrons in first shell i.e K shell it will have 2 electrons. After that i.e, L shell,M shell.... it will have 8 electrons. After one shell is full then only it will move to another shell means next shell

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