Question

the electronic configuration of an element is 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^1. what is the atomic number of last element of the same group which is recently discovered?​

Answer 1

Ununennium (Uue)

Configuration- Ununennium:

Electron configuration:

[Og]8s