Question

The most common oxidation state of actinide is:

• A. $+2$
• B. $+1$
• C. $+3$
• D. $+4$

Answer 1

The correct option is C $+3$

The most common oxidation state of actinide is $+3$. It is obtained when one $6d$ and two $7s$ electrons are lost. The general electronic configuration of actinoids may be written as $\left[Rn\right]5f^{1-14}6d^{0-1}7s^2$.