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  4. The element with atomic number 117 has not been discovered yet. In which family would you place this element if discovered?

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Q. The element with atomic number 117 has not been discovered yet. In which family would you place this element if discovered?

KEAMKEAM 2009Classification of Elements and Periodicity in Properties

Solution:

The electronic configuration of the element with atomic number 117 is
= [ $ R_n ]_{ 86 } 5 \, f^{ 14 }, \, 6d^{ 10 }, \, 7s^2, \, 7p^5 $
This element contains 7 electrons in its outermost shell, so it belongs to VIIA (17) group of Periodic Table, i.e., it is a halogen. Its IUPAC symbol is Uus.