Question

1. Observe the Modern Periodic Table and explain the gradation in reactivity of Halogen family.
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Answer 1

Explanation:

ANSWER

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:

17 group is the halogen family gradiation=x2 ex:-cl2