Question

What property do all elements in the same column of the periodic table as fluorine have in common?

Answer 1

Answer:

These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). ... Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet.

Answer 2

$flourine \: is \: placed \: in \: group \: 17 \: \\ all \: elements \: in \: that \: group \\ \: will \: be \: a \: halogen \\ \: and \: will \: have \: valency \: one \:$