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30 Ka 88 Sr ¹4C 234 Th+ He 90 a. 20 b. 8 c. 50 d. 74

30 Ka 88 Sr ¹4C 234 Th+ He 90 a. 20 b. 8 c. 50 d. 74

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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Match the elements with the number of neutrons.

The image appears to be a matching exercise related to chemistry, specifically focusing on isotopic notation, likely for an educational purpose such as a quiz or practice exercise. Here is the transcription suitable for an educational website: --- ### Chemistry Matching Exercise Match the following isotopic notations to the correct number of neutrons: 1. \( \begin{matrix} ^{39}_{19} \text{K} \end{matrix} \) 2. \( \begin{matrix} ^{88}_{38} \text{Sr} \end{matrix} \) 3. \( \begin{matrix} ^{14}_{6} \text{C} \end{matrix} \) 4. \( \begin{matrix} ^{234}_{90} \text{Th} + ^{4}_{2} \text{He} \end{matrix} \) **Options:** - a. 20 - b. 8 - c. 50 - d. 74 --- ### Explanation: Each entry consists of an element represented in isotopic notation, which includes the element's symbol, the mass number (superscript), and the atomic number (subscript). The task is to determine the number of neutrons in each isotope and match it to the correct number provided in the options. To find the number of neutrons: 1. Subtract the atomic number (number of protons) from the mass number (total number of protons and neutrons). For example: - For \( ^{39}_{19} \text{K} \): - Mass number (A) = 39 - Atomic number (Z) = 19 - Number of neutrons = \( A - Z = 39 - 19 = 20 \) Repeat this process for each isotope to find the matching option. --- This exercise helps students practice and apply their knowledge of isotopic notation and neutron calculations in a structured format.
Transcribed Image Text:The image appears to be a matching exercise related to chemistry, specifically focusing on isotopic notation, likely for an educational purpose such as a quiz or practice exercise. Here is the transcription suitable for an educational website: --- ### Chemistry Matching Exercise Match the following isotopic notations to the correct number of neutrons: 1. \( \begin{matrix} ^{39}_{19} \text{K} \end{matrix} \) 2. \( \begin{matrix} ^{88}_{38} \text{Sr} \end{matrix} \) 3. \( \begin{matrix} ^{14}_{6} \text{C} \end{matrix} \) 4. \( \begin{matrix} ^{234}_{90} \text{Th} + ^{4}_{2} \text{He} \end{matrix} \) **Options:** - a. 20 - b. 8 - c. 50 - d. 74 --- ### Explanation: Each entry consists of an element represented in isotopic notation, which includes the element's symbol, the mass number (superscript), and the atomic number (subscript). The task is to determine the number of neutrons in each isotope and match it to the correct number provided in the options. To find the number of neutrons: 1. Subtract the atomic number (number of protons) from the mass number (total number of protons and neutrons). For example: - For \( ^{39}_{19} \text{K} \): - Mass number (A) = 39 - Atomic number (Z) = 19 - Number of neutrons = \( A - Z = 39 - 19 = 20 \) Repeat this process for each isotope to find the matching option. --- This exercise helps students practice and apply their knowledge of isotopic notation and neutron calculations in a structured format.
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