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...
Related questions
Question
15
![**Question:**
The electron configuration of a cobalt(III) ion is
**Options:**
1. ( ) [Ar]3d⁶
2. ( ) [Ar]4s²3d⁹
3. ( ) [Ar]3d⁵
4. ( ) [Ar]4s¹3d⁵
5. ( ) [Ar]4s²3d⁴
**Explanation:**
To determine the correct electron configuration for a cobalt(III) ion (Co³⁺), we need to understand its atomic electron configuration and how electrons are removed to form the ion.
- The neutral cobalt (Co) atom has the atomic number 27 and an electron configuration of [Ar] 4s² 3d⁷.
- When cobalt forms a Co³⁺ ion, it loses three electrons.
- Electrons are removed first from the 4s orbital and then from the 3d orbitals.
Given this information:
1. **[Ar]3d⁶**: Incorrect because it does not account for the removal of electrons from the 4s orbital.
2. **[Ar]4s²3d⁹**: Incorrect because it shows additional electrons rather than removal.
3. **[Ar]3d⁵**: Incorrect because it represents the removal of too many electrons.
4. **[Ar]4s¹3d⁵**: Incorrect because only one electron should be removed from the 4s orbital.
5. **[Ar]4s²3d⁴**: Incorrect because it does not correctly follow the removal order (4s first).
Therefore, the correct electron configuration of a cobalt(III) ion is **[Ar]3d⁶** (after removing 2 electrons from 4s² and 1 electron from 3d⁷).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F51fbf4ed-5c5f-43a8-97a7-ef5f8ff66374%2Faf760b83-166c-4e7e-b9d6-2da7113dd358%2F1hn9g48_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question:**
The electron configuration of a cobalt(III) ion is
**Options:**
1. ( ) [Ar]3d⁶
2. ( ) [Ar]4s²3d⁹
3. ( ) [Ar]3d⁵
4. ( ) [Ar]4s¹3d⁵
5. ( ) [Ar]4s²3d⁴
**Explanation:**
To determine the correct electron configuration for a cobalt(III) ion (Co³⁺), we need to understand its atomic electron configuration and how electrons are removed to form the ion.
- The neutral cobalt (Co) atom has the atomic number 27 and an electron configuration of [Ar] 4s² 3d⁷.
- When cobalt forms a Co³⁺ ion, it loses three electrons.
- Electrons are removed first from the 4s orbital and then from the 3d orbitals.
Given this information:
1. **[Ar]3d⁶**: Incorrect because it does not account for the removal of electrons from the 4s orbital.
2. **[Ar]4s²3d⁹**: Incorrect because it shows additional electrons rather than removal.
3. **[Ar]3d⁵**: Incorrect because it represents the removal of too many electrons.
4. **[Ar]4s¹3d⁵**: Incorrect because only one electron should be removed from the 4s orbital.
5. **[Ar]4s²3d⁴**: Incorrect because it does not correctly follow the removal order (4s first).
Therefore, the correct electron configuration of a cobalt(III) ion is **[Ar]3d⁶** (after removing 2 electrons from 4s² and 1 electron from 3d⁷).
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY