Identify the group nad valency of the elements having atomic number 119. Also predict the outermost electronic configuration and write the general formula of its oxide.

Explanation

The present set up of the Long form of the periodic table can accommodate at the maximum 118 elements electron will enter 8s-orbital .As such its outermost electronic configuration will be `8s^(1)` .Since it has only one electron in the valence shell i.e., 8s therefore its valence will be 1 and it will lie in group 1 along with alkali metals of the formula of its oxide will be `M_(2)O` where M represents the element.