Apply n+l rule and calculate which of the following orbital has maximum energy?
Correct answer: A. 4s
- A. 4s
- B. 2p
- C. 2d
- D. 3s
Explanation
The orbital energies are compared with the help of n+l rule. The higher value of n+l, higher is the energy of the orbital. Hence 4s has the maximum energy.
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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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