MDCAT
Chemistry
2021
Chemistry · D and f Block Elements
Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.
Question
The correct electronic configuration of Cr is?
Options
- A
[Ar]4s23d4
- B
[Ar) 4s23d4
- C
[Ar]3d54s1
- D
[Ar)4s13d6
Explanation
The correct electronic configuration of Chromium (Cr) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵.
The correct electronic configuration of Chromium (Cr) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵.
The correct electronic configuration of Chromium (Cr) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵.
The correct electronic configuration of Chromium (Cr) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵.
The correct electronic configuration of Chromium (Cr) is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d⁵.
Tagged under Chemistry · D and f Block Elements · 2021