Question

what property do all element in the same column of the periodic table as fluorine have in common

Answer 1

since fluorine is a noble gas then in the column all noble gases are there like helium also Nobel

Answer 2

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