1. Atomic Structure
Isotopes And Mass — Quiz
Test your understanding of isotopes and mass with 5 practice questions.
Practice Questions
Question 1
An element has three isotopes: Isotope A with a mass of 44.0 amu and 20% abundance, Isotope B with a mass of 46.0 amu and 50% abundance, and Isotope C with a mass of 48.0 amu and 30% abundance. What is the average atomic mass of this element?
Question 2
Which of the following isotopes of silicon is most likely to be stable?
Question 3
An element has two isotopes: Isotope X with a mass of 102.0 amu and 40% abundance, and Isotope Y with a mass of 106.0 amu and 60% abundance. What is the average atomic mass of this element?
Question 4
Which of the following best describes the relationship between isotope stability and the binding energy per nucleon?
Question 5
An element has three isotopes: Isotope A with a mass of 120.0 amu and 25% abundance, Isotope B with a mass of 122.0 amu and 35% abundance, and Isotope C with a mass of 124.0 amu and 40% abundance. What is the average atomic mass of this element?