Lanthanoids and actinoids are f-block elements It is difficult to separate lanthanoids in the pure state. Explain.

Lanthanides and actinoids are f-block elements What is the common oxidation state of lanthanoids?

Lanthanoids and actinoids are f-block elements Name the lanthanoid having oxidation state of +4

For f-block element, incorrect statement is

Zirconium (Zr) belongs to. ‘4d and Hafnium (Hf) belongs to 5d transition series: It is difficult to separate them. Explain.

Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

Magnanese, a d-block elements exhibits different oxidation state.Why?

Which of the following is/are wrong statements? a) Alkali metals, alkaline earth metals and helium are s-block elements. b) Pnicogens and halogens are p-block elements. c) The first member of the lanthanide series is lanthanum. d) The lightest liquid metal is gallium. e) Group 17 contains no metals. f) Elements whose atoms have two outermost shells incomplete are called transition elements

Transition elements are d - block elements and inner transition elements are f-block elements. Write any two consequences of Lanthanoid Contraction.

Lanthanoid metals can be separated by: