Question

Use the periodic table to answer the following questions.

(D) Identify the group having metal, non-metal, liquid as well as gas at room temperature.

Answer 1

$F$ and $Cl$ are non-mentallic gases, $Br$ is non-metallic liquid, $I$ and $At$ are non-metallic solids. Recently discovered $Ts$(Tennessine) is a metal. $Ts$ is classified as a post transition metal and it is predicted that at standard temperature and pressure it exists as Solid.

So, halogen family, group $17$ is the answer.