Bromine
If you mean group 7A, the element that is a liquid at room temperature is bromine.
Bromine, group 17; Mercury, group 12. Both are liquids at STP
Bromine is the only liquid element in Group 7 (also known as Group 17) of the periodic table. It is a reddish-brown volatile liquid at room temperature, and it is the only nonmetallic element that is liquid under normal conditions.
No element in Group II is a liquid at room temperature. The only elements that are liquid at room temperature are bromine, which is in Group VII, and mercury, which is a transition metal and Lord only knows how your book defines those, but it's almost certainly NOT Group II. (It could, conceivably, be Group IIB, though the whole thing of group numbers is one of the stupider concepts in chemistry, especially since there are at least three mutually incompatible ways of defining them.)
group 18
If you mean group 7A, the element that is a liquid at room temperature is bromine.
Group 17 (old name: VIIA) contains Bromine andGroup 12 of the transition elements contains MercuryBoth elements are liquids at room temperature, RTP but only Mercury, Hg is a liquid at STP
The ONLY liquid elements (at STP) areMercury, Hg, in group 12Bromine, Br, in group 17Notations like ia, iia, ib or iib are not commonly in use, maybe in older books or periodic tables.
Bromine, group 17; Mercury, group 12. Both are liquids at STP
Bromine is a halogen element that is in liquid form at room temperature.
Bromine is the only liquid element in Group 7 (also known as Group 17) of the periodic table. It is a reddish-brown volatile liquid at room temperature, and it is the only nonmetallic element that is liquid under normal conditions.
No element in Group II is a liquid at room temperature. The only elements that are liquid at room temperature are bromine, which is in Group VII, and mercury, which is a transition metal and Lord only knows how your book defines those, but it's almost certainly NOT Group II. (It could, conceivably, be Group IIB, though the whole thing of group numbers is one of the stupider concepts in chemistry, especially since there are at least three mutually incompatible ways of defining them.)
Bromine is a halogen element, belonging to Group 17 of the periodic table. It is a reddish-brown liquid at room temperature and is highly reactive.
group 18
group 18
Zn=Zinc, which is a solid; Hg=Mercury, which is a liquid. They are both in group 12.
the only liquid halide is bromine