The number of electrons in the valence [outermost] shell of halogen is _____________.

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Solution

The correct option is C 7
Halogens belong to the $17^{t h}$ group of the periodic table. They have 7 valence shell electrons.

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The number of electrons in the valence [outermost] shell of halogen is _____________.

The correct option is C 7Halogens belong to the 17th group of the periodic table. They have 7 valence shell electrons.

The correct option is C 7
Halogens belong to the $17^{t h}$ group of the periodic table. They have 7 valence shell electrons.