4f-series elements are called asA) LanthanoidsB) ActinidesC) Rare earth elementsD) Lanthanones

4f-series elements are called asA) LanthanoidsB) ActinidesC) Rare eart

1.	4f-series elements are called asA) LanthanoidsB) ActinidesC) Rare earth elementsD) Lanthanones
Answer» D) LANTHANONES ( or LANTHANIDES )