What phases of matter do halogens exist?

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Answer 1 · 2018-06-16T22:01:18

Halogens are the only Group on the Table for which gas, liquid, and solids exist at room temperature and pressure...….

And we address the normal boiling points of the dihalogens…

$F_{2},$ $F_2,$ $normal boiling point$ $"normal boiling point"$ $=$ $=$ $- 188.1$ $-188.1$ $^{\circ} C$ $""^@C$

$C l_{2},$ $Cl_2,$ $normal boiling point$ $"normal boiling point"$ $=$ $=$ $- 34.0$ $-34.0$ $^{\circ} C$ $""^@C$

$B r_{2},$ $Br_2,$ $normal boiling point$ $"normal boiling point"$ $=$ $=$ $+ 137.8$ $+137.8$ $^{\circ} C$ $""^@C$

$I_{2},$ $I_2,$ $normal boiling point$ $"normal boiling point"$ $=$ $=$ $+ 183.0$ $+183.0$ $^{\circ} C$ $""^@C$

The more electrons, the more polarizable is the dihalogen molecule, and the greater the intermolecular force, and the greater the boiling point.