After 3s the sub-shell begin to fill is
Correct answer: A. 3p
- A. 3p
- B. 3d
- C. 3f
- D. 4s
Explanation
After the 3s sub-shell, the next sub-shell to fill would be the 3p sub-shell. After the 4s sub-shell, the next sub-shell to fill would be the 3d sub-shell. The 3f subshell does not exist because it corresponds to higher energy levels that are not typically observed in the electronic configurations of elements found in nature. After the 3p sub-shell, the next sub-shell to fill would be the 4s sub-shell.
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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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