Question

observe the modern periodic table and explain the gradation in
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Answer 1

Answer:

R@m R@m Ji_____❤

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. The elements in the group seven of the periodic table are termed as Halogens.

Answer 2

report it...................