Find the number of valence electrons in the Chlorine by writing the electronic arrangements in their atoms

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Solution

Valence electrons are the total number of electrons present in the outermost shell.
Chlorine has atomic number=17
Its electronic configuration is 2,8,7
Hence valence electron of Chlorine is 7

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Find the number of valence electrons in the Chlorine by writing the electronic arrangements in their atoms

Valence electrons are the total number of electrons present in the outermost shell.Chlorine has atomic number=17Its electronic configuration is 2,8,7Hence valence electron of Chlorine is 7

Valence electrons are the total number of electrons present in the outermost shell.
Chlorine has atomic number=17
Its electronic configuration is 2,8,7
Hence valence electron of Chlorine is 7