The naming of the new elements had been traditionally the privilege of the discoverer ( or discoverers) and the suggested name was ratified by the `IUPAC`. In recent years, disputes have arisen over the original discoveries of some of the elements of atomic number

Options

A. `19` to`100`
B. `90` to `95`
C. `104` and above
D. `95` to`100`

Answer

C

Explanation

Both American and Soviet scientists clamied credit for discovering element `104`. The Americans named it ruther fordium and the Soviets named it kurchatovium. To avoid this problem, `IUPAC` has recommended a nomenclature to be followed for naming these new elements unitl their names are officially recongnized.