The element with Z=117 and Z=120 belong to ____,______family respectively

Hint -I For the element with Z=104 to Z=118 the last two digits indicate group numberHint - II For the element Z=104 to Z = 118, subtract "82" to get the element belonging to the same groupApplying Hint- I:- Z = 117The last two digits are "17" .So it belongs to halogen family, 17th groupSo Z = 118 belongs to 18th  group then 119th element belong 1st  group and 120th  element belong to 2nd  group (alkaline earth metal)