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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define isotopes.
💡 Hint: Think about what makes two atoms the same element.
Question 2
Easy
What is the atomic number?
💡 Hint: Consider the definition of an element.
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 defines isotopes?
- Same atomic number
- different mass
- Different mass number
- same number of neutrons
- Different atomic number
- same mass
💡 Hint: Think about how isotopes are related to the same element.
Question 2
True or False: Isobars are atoms of the same element.
- True
- False
💡 Hint: Consider the definitions of isotopes versus isobars.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An element has two isotopes. Isotope 1 has a mass of 10 u and makes up 80% of the element. Isotope 2 has a mass of 12 u. Calculate the average atomic mass.
💡 Hint: Similar to the chlorine example discussed.
Question 2
If a certain isotope of carbon has 6 protons and 8 neutrons, identify its mass number and determine which isotope it is.
💡 Hint: Try to relate it back to the definition of isotopes.
Challenge and get performance evaluation