Number of unpaired electrons in chromium (Cr) are:
Correct answer: C. 6
- A. 4
- B. 5
- C. 6
- D. 7
Explanation
Chromium (Cr) has 6 unpaired electrons. Its electronic configuration is: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹ In the 3d orbital, there are 5 unpaired electrons. Unpaired electrons are those electrons in an atom that have their spins in the same direction and are located in different orbitals with parallel spins. In this case, the 5 unpaired electrons are in the 3d orbital, making chromium a paramagnetic element.
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