Question

observe the modern periodic table and explain the gradation of reactivitt of halogen family
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Answer 1

Answer:

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Explanation:

As studying the Modern periodic table, The group 17 contains the members of the halogen family.

All of them have the general formula X 2

A gradation is observed in their physical state down the group.

Thus, fluorine (F 2 ) and chlorine (Cl 2 ) are gases. Bromine (Br 2 ) is a liquid while iodine (I 2) is a solid.

Answer 2

Answer:

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