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Chemistry
Which one of the following is an electronic configuration of thorium?
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Q. Which one of the following is an electronic configuration of thorium?
The d-and f-Block Elements
A
$\left[Rn\right]5f^{2}6d^{0}7s^{2}$
13%
B
$\left[Rn\right]5f^{1}6d^{1}7s^{2}$
27%
C
$\left[Rn\right]5f^{0}6d^{2}7s^{2}$
55%
D
$\left[Rn\right]5f^{2}6d^{2}7s^{2}$
6%
Solution:
Thorium $\left(Z=90\right)$ have $\left[Rn\right]5f^{0}6d^{2}7s^{2}$ configuration.