Practice - Problem 1: Chlorine’s Average Atomic Mass
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Practice Questions
Test your understanding with targeted questions
What is an isotope?
💡 Hint: Think about the definition relating to atomic structure.
If chlorine-35 is 75.78% abundant, what is its decimal representation?
💡 Hint: Convert percentage to decimal form by dividing by 100.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the average atomic mass of chlorine based on its isotopes?
💡 Hint: Look closely at the percentages given.
Isotopes of an element must have the same number of protons?
💡 Hint: Think about what defines an element.
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Challenge Problems
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If an unknown element has two isotopes with masses of 50 u and 52 u, and abundances of 75% and 25% respectively, calculate the average atomic mass.
💡 Hint: Apply the same method as we did with chlorine.
Explain how the average atomic mass might differ if the abundances of chlorine-35 and chlorine-37 were reversed.
💡 Hint: Think about how weighting works in averages.
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