What is the ground state electron configuration for selenium (Se)?
Understand the Problem
The question is asking for the ground state electron configuration of selenium (Se), which refers to the arrangement of electrons around the nucleus of an atom in its lowest energy state.
Answer
[Ar] 3d10 4s2 4p4
The final answer is [Ar] 3d10 4s2 4p4
Answer for screen readers
The final answer is [Ar] 3d10 4s2 4p4
More Information
Selenium, with 34 electrons, has its ground state electron configuration ending in 4p4, following the Aufbau principle.
Tips
A common mistake is misplacing the 3d and 4s orbitals. Remember that the 3d orbital is filled after the 4s.
Sources
- Socratic: What is the ground state electron configuration of Se? - socratic.org
- WebElements: Selenium properties - winter.group.shef.ac.uk
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