Help science homework!!!!!!!!!!
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they determine how reactive the element will be. the closer to 8 it has, the more reactive it will be.
so the halogens in group 17 are the most reactive elemtns on the table. but elements with one or two are pretty reactive too because they can lose those electrons in a compound (alkali and alkaline earth metals)
so the halogens in group 17 are the most reactive elemtns on the table. but elements with one or two are pretty reactive too because they can lose those electrons in a compound (alkali and alkaline earth metals)