The different oxidation states exhibited by the lanthanoids are:

Alloy that contains lanthanoid metals is-

1. Mischmetal

2. Permalloy

3. Supermalloy

4. Brass

Give below are some atomic numbers:

29, 59, 74, 95, 102, 104
The atomic numbers of the inner transition elements among the above are :

The electronic configuration of the last element of actinoids is :

1. Thorium, Th: $\left[\mathrm{Rn}\right]5{\mathrm{f}}^{14}6{\mathrm{d}}^{1}7{\mathrm{s}}^2$

2. Lawrencium, Lr: $\left[\mathrm{Rn}\right]5{\mathrm{f}}^{14}6{\mathrm{d}}^{1}7{\mathrm{s}}^2$

3. Neptunium, Np: $\left[\mathrm{Rn}\right]5{\mathrm{f}}^{14}6{\mathrm{d}}^{1}7{\mathrm{s}}^2$

4. Protactinium, Pa: $\left[\mathrm{Rn}\right]5{\mathrm{f}}^{14}6{\mathrm{d}}^{1}7{\mathrm{s}}^2$

Consider the following statements: 

Correct statements amongst the above are:

The correct statement regarding inner transition elements is

The most common oxidation state for lanthanoids and actinoids is:

1. +5

2. -3

3. +1

4. +3

Incorrect statement(s) regarding inner transition elements is/are: