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What is the calcium isatope with 20 nevtrons? 才乙

What is the calcium isatope with 20 nevtrons? 才乙

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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The image shows the notation for an isotope with the following symbols: - \( \frac{A}{Z} \text{X} \) Below this, the text reads: "What is the calcium isotope with 20 neutrons?" ### Explanation: - **A** represents the mass number (sum of protons and neutrons). - **Z** represents the atomic number (number of protons). - **X** is the chemical symbol of the element. To find the calcium isotope with 20 neutrons: Calcium has an atomic number (Z) of 20. Therefore, the equation for the mass number (A) is: \[ A = \text{protons} + \text{neutrons} = 20 + 20 = 40 \] Thus, the calcium isotope is \( \text{Ca-40} \).
Transcribed Image Text:The image shows the notation for an isotope with the following symbols: - \( \frac{A}{Z} \text{X} \) Below this, the text reads: "What is the calcium isotope with 20 neutrons?" ### Explanation: - **A** represents the mass number (sum of protons and neutrons). - **Z** represents the atomic number (number of protons). - **X** is the chemical symbol of the element. To find the calcium isotope with 20 neutrons: Calcium has an atomic number (Z) of 20. Therefore, the equation for the mass number (A) is: \[ A = \text{protons} + \text{neutrons} = 20 + 20 = 40 \] Thus, the calcium isotope is \( \text{Ca-40} \).
Expert Solution
Step 1

The atomic number of calcium is 20 (Number of protons).

The symbol of the calcium atom is Ca.

The number of neutrons (as told in the statement)=20

 

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