Question

An element with the electron configuration $\left[Xe\right]4f^{14}5d^{7}6s^2$ is:

• A. an alkaline earth element
• B. a transition element
• C. an inert gas
• D. a rare earth

Answer 1

Answer: (B)

a transition element

An element with the electron configuration $\left[Xe\right]4f^{14}5d^{7}6s^2$ is a transition element because valence electron lies in d orbital.