What is the electron configuration of Cl-1?
Understand the Problem
The question is asking for the electron configuration of the chloride ion (Cl-1), which involves determining how the electrons are arranged around the nucleus of the ion. This includes understanding how many electrons it has and how they fill the various energy levels based on the rules for electron configuration.
Answer
1s2 2s2 2p6 3s2 3p6
The final answer is 1s2 2s2 2p6 3s2 3p6
Answer for screen readers
The final answer is 1s2 2s2 2p6 3s2 3p6
More Information
When Chlorine (Cl) gains one electron to form Cl-, it becomes isoelectronic with argon (Ar), making its electron configuration identical to that of Argon.
Tips
Students often forget to add the extra electron for the Cl- ion, making its configuration the same as Argon's.
Sources
- What is the electron configuration of Cl-? | Socratic - socratic.org
- What is Electron Configuration of Chlorine - Unacademy - unacademy.com
- What is the electron configuration of Cl ? Chemistry Q&A - BYJU'S - byjus.com
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