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40 Calculate the number of protons, neutrons, and electrons in Ca. 20

40 Calculate the number of protons, neutrons, and electrons in Ca. 20

Chemistry
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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**Exercise: Calculating Subatomic Particles** Calculate the number of protons, neutrons, and electrons in \(\mathrm{^{40}_{20}Ca}\). **Be sure to answer all parts:** - [ ] protons - [ ] neutrons - [ ] electrons ### Instructions 1. **Protons:** The number of protons is equal to the atomic number (bottom number in the element symbol). For calcium (\(\mathrm{Ca}\)), the atomic number is 20. 2. **Electrons:** In a neutral atom, the number of electrons equals the number of protons. Therefore, calcium has 20 electrons. 3. **Neutrons:** The number of neutrons is the difference between the mass number (top number) and the atomic number. For calcium, this is \(40 - 20 = 20\) neutrons. Ensure you fill in the appropriate boxes for each part of the question.
Transcribed Image Text:**Exercise: Calculating Subatomic Particles** Calculate the number of protons, neutrons, and electrons in \(\mathrm{^{40}_{20}Ca}\). **Be sure to answer all parts:** - [ ] protons - [ ] neutrons - [ ] electrons ### Instructions 1. **Protons:** The number of protons is equal to the atomic number (bottom number in the element symbol). For calcium (\(\mathrm{Ca}\)), the atomic number is 20. 2. **Electrons:** In a neutral atom, the number of electrons equals the number of protons. Therefore, calcium has 20 electrons. 3. **Neutrons:** The number of neutrons is the difference between the mass number (top number) and the atomic number. For calcium, this is \(40 - 20 = 20\) neutrons. Ensure you fill in the appropriate boxes for each part of the question.
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