how would the chemical reactivity and valance electron vary in periods and groups
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chemical reactivity
when we down in groups
metals=reactivity increase
non metal=reactivity decrease
when we move left to right in periods
first the reactivity increase than decrease than
again increase
valence electron
when we move left to right in periods valence electron increases and when we move down to group the valence electrons remains same in all the elements in the particular group
when we down in groups
metals=reactivity increase
non metal=reactivity decrease
when we move left to right in periods
first the reactivity increase than decrease than
again increase
valence electron
when we move left to right in periods valence electron increases and when we move down to group the valence electrons remains same in all the elements in the particular group
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