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Electronic Configuration Of Co3+


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Solution

Cobalt: Cobalt: is a hard ferromagnetic, silver-white, hard, lustrous, brittle element.

  • Atomic mass: 58.9332 g.mol -1
  • Atomic number: 27

The electronic Configuration of cobalt (Co) is:

  • Co: 1s2 2s2 2p6 3s2 3p6 3d7 4s2

Electronic Configuration Of Co3+ is:
Co3+:1s2 2s2 2p6 3s2 3p64s13d5

  • The 4s and 3d sublevels are nearly identical in energy, so the ion can become more stable by moving one of the 3d electrons to the 4s level.
  • Then, both the 4s and 3d levels are half-filled, and the ion gains a little more stability.
  • The electron configuration becomes 1s2 2s2 2p6 3s2 3p64s13d5


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