Chemistry, asked by kanhaiya4172, 7 months ago

Write the atomic numbers of two elements X and Y having electronic configurations 2, 8, 1 and 2, 8, 7 respectively

Answers

Answered by kumarrahul76543

0

Answer:

11 and 17

Explanation:

Answered by divya3453

0

Answer:

X is sodium and Y is chlorine

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