Question

Name a member of the lanthanide series which is well known to exhibit 2 oxidation state

Answer 1

Nd (60)

Sm (62)

Eu (63)

Tm (69)

Yb (70)

Answer 2

Answer:

Members of lanthanide series which exhibits +2 oxidation state are :-

1. Nd(60)  4f4 6s2

2. Sm(62)4f6 6s2

3. Eu(63) 4f7 6s2

4. Tm(69) 4f13 6s2

5. Yb(70) 4f14 6s2

Explanation:

1. Lanthanide have general electronic configuration of [Xe} 4f^n 6s^2.

2.So the atoms loses the electrons to get more stable configuration.

3. The half filled shell is more stable than others.