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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is relative atomic mass?
💡 Hint: Think about how isotopes contribute to the mass of an element.
Question 2
Easy
Calculate the percent abundance if 70% of an element is isotope A and the remaining is isotope B.
💡 Hint: The total abundance must equal 100%.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What do we call the average of an element's isotopic masses based on their natural abundances?
- Mass number
- Relative Atomic Mass
- Isotopic Mass
💡 Hint: Focus on the definition of atomic weight.
Question 2
Isotopes of a given element have the same number of protons?
- True
- False
💡 Hint: Consider the properties of atomic structure.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Two isotopes of an element are found. Isotope A has a mass of 20.0 u and an abundance of 75%. Isotope B has a mass of 22.0 u and an abundance of 25%. Calculate the average atomic mass of the element.
💡 Hint: Remember to convert the percentages to fractions.
Question 2
Discuss how mass spectrometry can be used to identify unknown elements. Provide an example.
💡 Hint: Think about why isotopes have distinct patterns in mass spectrometry.
Challenge and get performance evaluation