Write scientific reason d.Element belonging to the same group have the same valency
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Elements belonging to the same group have the same valency because, they have same number of electrons in the outermost shell or valence electrons.
Moreover, valency depends upon valence electrons, so they have same valency.
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Hope it helps☺
Elements belonging to the same group have the same valency because, they have same number of electrons in the outermost shell or valence electrons.
Moreover, valency depends upon valence electrons, so they have same valency.
_________________________
Hope it helps☺
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