what does the term valence mean ?Explain in detail
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valency is the number of electrons lost or gain from the outermost shell or the valence shell of an electron to acquire stable
valency of an element is always a whole number .
certain elements such as gold , copper show variable valency due to the presence of vacant d-orbitals
valency of an element is always a whole number .
certain elements such as gold , copper show variable valency due to the presence of vacant d-orbitals
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