Multiple choice

Among the elements of group 17, the element which is the most reactive is

  1. F

  2. Cl

  3. Br

  4. I
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A Correct answer
Explanation

Fluorine is the most reactive element of group 17. Fluorine is much more reactive because it has the highest electronegativity of all the elements (4.0). It wants an electron the most; so it will practically rip off electrons from other elements just to fill its shell. This also leads to why fluorine is never seen in its elemental form naturally because of its extreme reactivity.

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