5. What two elements are exceptions to the way we normally write electron configurations? Write the expected and the actual configuration of each. What rules are followed? What rules are violated?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**Question 5: Exceptions in Electron Configurations**

**Question:**
What two elements are exceptions to the way we normally write electron configurations? Write the expected and the actual configuration of each. What rules are followed? What rules are violated?

**Explanation:**
In the study of electron configurations in chemistry, certain elements exhibit anomalies in how their electrons are distributed in comparison to the predictions made by standard electron configuration rules. Your task is to identify two such elements and explain how their actual electron configurations deviate from the expected patterns. Include the following in your response:

1. The names of the two elements.
2. The expected electron configuration for each element.
3. The actual electron configuration for each element.
4. A discussion on which electron configuration rules (such as the Aufbau principle, Hund's rule, and Pauli exclusion principle) are adhered to and which are not in these cases.

These exceptions typically occur due to the enhanced stability associated with half-filled or fully-filled d-subshells. By studying these exceptions, we can gain a deeper understanding of the nuances and complexities of electron configurations in atoms.

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Note: This explanation is provided to help guide you in exploring the subject of electron configuration exceptions and understanding the underlying principles that cause such anomalies.
Transcribed Image Text:**Question 5: Exceptions in Electron Configurations** **Question:** What two elements are exceptions to the way we normally write electron configurations? Write the expected and the actual configuration of each. What rules are followed? What rules are violated? **Explanation:** In the study of electron configurations in chemistry, certain elements exhibit anomalies in how their electrons are distributed in comparison to the predictions made by standard electron configuration rules. Your task is to identify two such elements and explain how their actual electron configurations deviate from the expected patterns. Include the following in your response: 1. The names of the two elements. 2. The expected electron configuration for each element. 3. The actual electron configuration for each element. 4. A discussion on which electron configuration rules (such as the Aufbau principle, Hund's rule, and Pauli exclusion principle) are adhered to and which are not in these cases. These exceptions typically occur due to the enhanced stability associated with half-filled or fully-filled d-subshells. By studying these exceptions, we can gain a deeper understanding of the nuances and complexities of electron configurations in atoms. --- Note: This explanation is provided to help guide you in exploring the subject of electron configuration exceptions and understanding the underlying principles that cause such anomalies.
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