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  • Atomic Structure
  • What is the the number of unpaired electrons in chromic i...
Multiple choice

What is the the number of unpaired electrons in chromic ion Cr3+ (Atomic number: 24)?

  1. 6

  2. 2

  3. 4

  4. 3

  5. -

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The electronic configuration of chromium is 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4s1. Therefore, by the removal of 3 electrons it results in 3 unpaired electrons in the outer shell.

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