,SESSION
OBJECTIVES
1. f-Block elements
2. Introduction to lanthanides
3. Oxidation state
4. lanthanide contraction
5. Chemical reactivity
6. Introduction of Actinides
7. Comparison of actinides with lanthanides
, INNER TRANSITION
ELEMENTS
The elements in which the additional electron
enters (n-2)f orbitals are called inner transition
elements. The valence shell electronic configuration
of these elements can be represented as (n – 2)f0-
14
(n – 1)d0-1ns2.
4f inner transition metals are known as lanthanides
because they come immediately after lanthanum
and 5f inner transition metals are known as
actinoids because they come immediately after
actinium.
OBJECTIVES
1. f-Block elements
2. Introduction to lanthanides
3. Oxidation state
4. lanthanide contraction
5. Chemical reactivity
6. Introduction of Actinides
7. Comparison of actinides with lanthanides
, INNER TRANSITION
ELEMENTS
The elements in which the additional electron
enters (n-2)f orbitals are called inner transition
elements. The valence shell electronic configuration
of these elements can be represented as (n – 2)f0-
14
(n – 1)d0-1ns2.
4f inner transition metals are known as lanthanides
because they come immediately after lanthanum
and 5f inner transition metals are known as
actinoids because they come immediately after
actinium.
