Eka-aluminium and eka-silicon were the names given by Mandeleev

Eka-aluminium and eka-silicon were the names given by Mandeleev for the then unknown elements gallium and germanium respectively. A recently discovered element was first named as eka-mercury. What is its atomic number? Write its group number, electronic configuration, IUPAC and official names.

The element which comes after mercury in the periodic table is called eka-mercury.
Its various parameters are 2 = 80+32 = 112
IUPAC name: Uub
Official name : Cn (copernicium)
Electronic configuration = [Rn] ${{5f}^{14}}$${{6d}^{10}}$${{7s}^{2}}$