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2 years ago

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Which of the following elements is the most reactive? A. At B.Cl C.I D.Br

1 answer:

adell [148]2 years ago

6 0

Answer:

B. Cl.

Explanation:

These are Group 7 elements whose reactivity reduces as you go down the group. Chlorine has a smaller atoms than the rest and has a stronger tendency to grab an electron in its valency shell. This is because its nucleus is closer to the outer electrons than the other elements.

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