Which group on the periodic table has at least
one element in each of the three phases of
matter at stp?
(1) 1 (3) 17
(2) 2 (4) 18

The correct option is GROUP 17.
The group 17 of the periodic table is made up of halogens. Halogens is the family name for fluorine, chlorine, bromine, iodine and all the other elements that are found in group 17. Some of the elements in this group are gases, some are liquids while others are solids.

Answer246 k;