The mole is important because it allows chemists to work with the subatomic world with macro world units and amounts. Atoms, molecules and formula units are very small and very difficult to work with usually. However, the mole allows a chemist to work with amounts large enough to use.
Element with atomic number 112 belong to group 12 in the periodic table
Copernicium which is a transition metal is the element with atomic number 112. Copernicium is a synthetic element with symbol Cn. The most stable copernicium is copernicium 285 which as (Rn) 5F^14 6d^10 7s^2 electronic configuration.