Question

if elements 17 is a halogen where would you expect to find element 18​

Answer 1

Answer:

"Halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts)."

Answer 2

Explanation:

element 18(argon) can be found in noble gas group i.e; group 18 period 3 if element 17 is halogen .

also because after halogens , noble gases comes in periodic table.