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109. An element has atomic number 17 to which group and period closer it belong. [CBSE 2016]

109. An element has atomic number 17 to which group and period closer it belong. [CBSE 2016]

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
10 months ago
Answer: Explanation: Its electronic configuration is 2, 8, 7. It belongs to group 17 because it has 7 valence electrons. It belongs to 3rd period because it has 3 shalls.

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