valency is different for all elments presnt in the group
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The valency of an element is determined by the number of outer shell (valence) electrons. ... Group 6 elements, have 6 valence electrons and will tend to take 2 electrons and have a valency of -2. Group 7 elements have 7 valence electrons and will tend to take 1 electron and have a valency of -1.
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the above statement is not true............ OK
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