The elements `Z = 117` and `120` have not yet have been discovered, In which family`//`group would you place these elements and also give the electronic configuration in each case.

Explanation

The electronic configuration of the elemetn with `Z = 117` would be `[Rn] 4f^(14) 5d ^(10) 7s ^(2) 7p^(5).` It has outermost `ns ^(2) np^(5)` configuration and therefore, it belongs, to halogen family or Group 17. IUPAC name: Tennessine, Ts
The electronic configuration of the element with `Z = 118` would be `[Rn] 4f ^(14) 5d ^(10) 7s^(6). ` It has outermost `ns ^(2) np ^(6)` configuration and therefor, belongs to noble gases group 18. IUPAC name: Oganesson, Og.