Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![### Summer 2021 Quiz: Chapter 7
**Name:** Steven A.
---
1. **Calculate the energy in a laser pulse containing \(10^9\) photons with a wavelength of 120 nanometers:**
Answer: 36
2. **Calculate the wavelength of the light emitted when an electron in a hydrogen atom drops from the 6th to the 3rd quantum state:**
Formula: \( E = h\nu \)
Would this be visible to the human eye?
Answer: Yes.
3. **The following electron configuration is incorrect:**
\(1s^2 \, 2s^2 \, 2p^6 \, 3s^5 \, 3p^5 \, 3d^2\)
- Write the correct electron configuration for this atom:
Answer: \(1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 3d^5\)
- What element is this?
Answer: Nitrogen
4. **The arsenic atom (As) has the electron configuration [Ar] \(4s^2 \, 3d^{10} \, 4p^3 \)**
- Draw an orbital diagram (boxes and arrows) for the outermost electrons (in the 4s and 4p subshells) of the As atom.
Diagram Description:
- The orbital diagram consists of boxes representing orbitals.
- 4s orbital has one box with two arrows pointing in opposite directions.
- 4p orbitals have three boxes; the arrows are placed as follows: the first box with one arrow, the second box with one arrow, and the third box with one arrow, indicating the filling of the 4p orbitals.
5. **Write the abbreviated electron configuration for the \( \text{Co}^{2+} \) ion:**
Answer: \( \text{Co}^{2+}: 1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \)
---
*Note:* The quiz paper contains a hand-drawn orbital diagram for question 4. The explanation above translates the diagram into text form](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09cc29b2-b8f1-46a4-8709-ee61d656c9a7%2F2e07a3d5-48d5-4858-bd99-270b150a0376%2F4al4jh.jpeg&w=3840&q=75)
Transcribed Image Text:### Summer 2021 Quiz: Chapter 7
**Name:** Steven A.
---
1. **Calculate the energy in a laser pulse containing \(10^9\) photons with a wavelength of 120 nanometers:**
Answer: 36
2. **Calculate the wavelength of the light emitted when an electron in a hydrogen atom drops from the 6th to the 3rd quantum state:**
Formula: \( E = h\nu \)
Would this be visible to the human eye?
Answer: Yes.
3. **The following electron configuration is incorrect:**
\(1s^2 \, 2s^2 \, 2p^6 \, 3s^5 \, 3p^5 \, 3d^2\)
- Write the correct electron configuration for this atom:
Answer: \(1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 3d^5\)
- What element is this?
Answer: Nitrogen
4. **The arsenic atom (As) has the electron configuration [Ar] \(4s^2 \, 3d^{10} \, 4p^3 \)**
- Draw an orbital diagram (boxes and arrows) for the outermost electrons (in the 4s and 4p subshells) of the As atom.
Diagram Description:
- The orbital diagram consists of boxes representing orbitals.
- 4s orbital has one box with two arrows pointing in opposite directions.
- 4p orbitals have three boxes; the arrows are placed as follows: the first box with one arrow, the second box with one arrow, and the third box with one arrow, indicating the filling of the 4p orbitals.
5. **Write the abbreviated electron configuration for the \( \text{Co}^{2+} \) ion:**
Answer: \( \text{Co}^{2+}: 1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \)
---
*Note:* The quiz paper contains a hand-drawn orbital diagram for question 4. The explanation above translates the diagram into text form
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