Question

observe the modern periodic table and explain the gradation in reactivity of halogen family

Answer 1

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

*All of them have the general formula X2. A gradation is observed in their physical state down the group.

*Thus, fluorine (F2) and chlorine (Cl2) are gases. Bromine (Br2) is a liquid while iodine (I2) is a solid.



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Answer 2

as studying the modern periodic table,
the group 17 contains the members of the halogen family

all of them have the general formula X2. A gradation is observed in their physical state down the group

thus, fluorine(F2) and chlorine( C12) are gases. Bromine(Br2) is a liquid while iodine(l2) Is a solid

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