Question

Select the atoms whose ions have an electron configuration of nd^6 (n = 3, 4, 5 ...). For example, the 2+ ion for V ends the electron configuration with 3d^3 .Check all that apply.A. Tl B. Fe C. Rh D. La E. Os F. Ti

Answer 1

Correct answers are B. Fe and E. Os

Step-by-step explanation

For Fe: electron configuration for Fe is

`[Ar]3d^64s^2`

For TI: the electron configuration is

`[Xe]4f^(14)5d^(10)6s^26p^1`

For Rh: Electron configuration of Rhodium is

`[Kr]4d^85s^1`

For La: Electron configuration of Lanthanum is

`[Xe]5d^16s^2`

For Os: Electron configuration is

`[Xe]4f^(14)5d^66s^1`

For Ti: Electron configuration is

`[Ar]3d^24s^2`