Science, asked by cutipie20, 7 months ago

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Answered by aakashchauhan4444

0

Answer:

the atomic number is 17 it would be chlorine

Explanation:

Answered by srideviasha152

1

Explanation:

a)atomic no is 17

(b)It has 7 valence electrons, therefore it would be chemically similar to F(9)=2,7.

hope this will definitely help you

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