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An element X belongs to 3rd period and 17th group, state the no. of valence electrons in it.

An element X belongs to 3^rd period and 17^th group, state the no. of valence electrons in it.

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7 valence electrons (2, 8, 7)

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Chapter 1: Periodic Table, Periodic Properties and Variations of Properties - lntext Questions [Page 10]

Chapter 1 Periodic Table, Periodic Properties and Variations of Properties
lntext Questions | Q 9. (i) | Page 10

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