That is why as you go up a group Chemical Reactivity increases because it is easier for elements to gain electrons when they have high electronegativity. Chemical Reactivity decrease as you go down the groupįor Non-Metals, the farther right-up in the table you go, the higher the electronegativity.Chemical Reactivity increases as you go left to right of the periodic table.And you go from left to right on the periodic table elements have more electrons in their valence shells they have to get rid off which requires an element to have high energies which results into lower Chemical Reactivity. This happens because as you go down a group, it is easier for electrons to be taken or given away, resulting in high Chemical Reactivity.
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