Seudónimo Seudónimo

02-03-2017
Chemistry

contestada

Elements in the halogen group are
a.very reactive
b.have seven electrons in the outer shell
c. react to form salts
d.all of the above

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tasfialabina tasfialabina

02-03-2017

All of the above. Halogens are extremely reactive. Their valency is -1 as they have 7 outer shell electrins and need 1 more to make it 8. They also react with metals to form salt. So the ans is (D)

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