Which element is in the same "family" as chlorine (cl) and fluorine (f)? a. bromine (br)b. oxygen (o)c. hydrogen (h)d. lithium (li)

 [A]:  "bromine (Br)"  .
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Note:  "bromine" (Br) ; "chlorine" (Cl) ; and "fluorine" belong in the "halogen" family.  
___________________________________________________Refer to the Period Table of Elements (shown below).  

The vertical "columns" are referred to as:  "groups";  or, "families".   Refer to the "halogens"; or "halogen family" — circled in "black-color";  as follows:___________________________________________________

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