Eka-aluminium andeka- silicon were the namesgivenby Mendeleev for thethenunknowns elements. What isitsatomic number? Write its group number, electronic configuration, IUPAC and official names.

Eka-aluminium andeka- silicon were the namesgivenby Mendeleev for thet

1.	Eka-aluminium andeka- silicon were the namesgivenby Mendeleev for thethenunknowns elements. What isitsatomic number? Write its group number, electronic configuration, IUPAC and official names.
Answer» Solution :The element whichcomesafternercury in thesame group of theperiodictableis calledeka- mercury . Itsvariousparameters are : Z=80 + 32 = 112 IUPAC name : Uub OFFICIAL name : Cn ( coperniclum) E.C.=[RN]`5f^(14) 6d^(10) 7s^(2)`