Question

3) Write
gradation of
of halogen
halogen family?​

Answer 1

Answer:

halogens have one electron less in their outermost shell. one shell increses top to bottom.so attraction between nucleus and outermost shell decreases. so in halogens family reactivity decreases from top to bottom. Flourine is most reactive and astatine is least reactive

Answer 2

Answer:

Halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).

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