When 6d orbital is complete the entering electron goes into_________________?
Correct answer: C. 7p
- A. 7f
- B. 7s
- C. 7p
- D. 7d
Explanation
According to the Aufbau filling order, the 6d subshell is followed by the 7p subshell, so the next electron enters 7p after 6d is complete. Students may choose 7s because its principal quantum number is close to 6, but 7s is filled earlier in the sequence, before 5f and 6d.
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About Electronic Configuration
Electronic configuration describes how electrons occupy shells, subshells and orbitals around an atom. Questions use the Aufbau principle, Pauli exclusion principle and Hund's rule to write configurations, identify valence electrons, form ions and explain periodic trends, including common exceptions such as chromium and copper.
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