The group 17 contains the members of halogen family. all the general formula X2 a graduation is observed in the their physical state down the group. the non_ metallic element fluorine (F2) and chlorine (Cl2) are gases , bromine (br2) is a liquid while iodine ( I2) is a solid.
Answers & Comments
Answer:
The group 17 contains the members of halogen family. all the general formula X2 a graduation is observed in the their physical state down the group. the non_ metallic element fluorine (F2) and chlorine (Cl2) are gases , bromine (br2) is a liquid while iodine ( I2) is a solid.