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Solution


Q.

If IUPAC name of an element is ''Unununnium" then the element belongs to nth group of Periodic table. The value of n is _________ .             [2024]

Ans.

(11) 

Unununnium is 111 (un mean 1, nium is added as a convension).

Element with atomic number 118 is last element of periodic table i.e., belongs to group 18. Starting backwards, 117 → group 17, 116 → group 16, 115 → group 15, 114 → group 14, 113 → group 13, 112 → group 12, 111 → group 11.