Question

why group 1 and group 7 are high reactivity
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Answer 1

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☆The reactivity of group 1 elements increases as you go down the group because: the atoms become larger. the outer electron becomes further from the nucleus. the force of attraction between the nucleus and the outer electron decreases.....

Answer 2

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$\huge{\boxed{{★\bf\red{Answer:-}}}}$

• The group 7 halogens have 7 outer electrons and only need to gain one electron to form a stable negative ion, or, share one electron to make a covalent bond, thus making them the most reactive non-metals of the periodic table.

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