The element with atomic number 120, if discovered would be placed in which group of the periodic table

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Group 1

Group 2

Group 3

Group 8

answer is B.

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Detailed Solution

Atomic number, Z=120 and its electronic configuration becomes [Uuo]8s², where [Uuo] has atomic number 118.

As valence electrons present in s-orbital and that orbital is filled with two electrons which indicates that the element belong to group 2 - alkali earth family.

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