In electronic configuration of Cu and Cr which of following is true:
Correct answer: C. 1 electron in 4s-orbitals
- A. 3-d is full filled
- B. 3-d is half filled
- C. 1 electron in 4s-orbitals
- D. 8 electrons in s-orbitals
Explanation
So, when we talk about the electronic configuration of copper (Cu) and chromium (Cr), we look at the arrangement of electrons in their respective energy levels or orbitals. In both cases, the 3-d orbital is actually half-filled. This means that there are five electrons in the 3-d orbital for both copper and chromium.
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