What is wrong with the following electron configurations for atoms in their ground states? a. 1s2 2s2 3s1 b. [Ne]2s2 2p3 c. [Ne] 3s2 3d5

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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What is wrong with the following electron configurations for atoms in their ground states? a. 1s2 2s2 3s1 b. [Ne]2s2 2p3 c. [Ne] 3s2 3d5
**October 23rd: Electron Configurations and Ions**

1. **What is wrong with the following electron configurations for atoms in their ground states?**
   - a. \(1s^2 2s^3 s^1\)
   - b. \([Ne] 2s^2 2p^3\)
   - c. \([Ne] 3s^2 3d^5\)

2. **Write the full electron configurations for the following atoms:**
   - a. \( \text{Ca}^{2+} \)

**Explanation:**

The image is part of an educational assignment concerning electron configurations for various elements. 

- The first section asks about errors in given electron configurations. Students need to identify what is incorrect based on quantum mechanical principles and the Aufbau principle, which describes the order in which electron states are filled.

- The second section requires students to write the full electron configuration for a \( \text{Ca}^{2+} \) ion, which involves considering the removal of electrons due to ionization, typically from the outermost shell first.
Transcribed Image Text:**October 23rd: Electron Configurations and Ions** 1. **What is wrong with the following electron configurations for atoms in their ground states?** - a. \(1s^2 2s^3 s^1\) - b. \([Ne] 2s^2 2p^3\) - c. \([Ne] 3s^2 3d^5\) 2. **Write the full electron configurations for the following atoms:** - a. \( \text{Ca}^{2+} \) **Explanation:** The image is part of an educational assignment concerning electron configurations for various elements. - The first section asks about errors in given electron configurations. Students need to identify what is incorrect based on quantum mechanical principles and the Aufbau principle, which describes the order in which electron states are filled. - The second section requires students to write the full electron configuration for a \( \text{Ca}^{2+} \) ion, which involves considering the removal of electrons due to ionization, typically from the outermost shell first.
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