Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What are isotopes?
💡 Hint: Think about the number of neutrons!
Question 2
Easy
Name one isotope of hydrogen.
💡 Hint: Consider the common types of hydrogen.
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 an isotope?
- Same number of protons
- different number of neutrons
- Same number of neutrons
- different number of protons
- Different mass
- different elements
💡 Hint: Remember the difference between protons and neutrons.
Question 2
True or False: All isotopes of an element have the same chemical properties.
- True
- False
💡 Hint: Think about chemical properties linked to atomic structure.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A sample contains 100 atoms of an element with atomic number 6. If 80 are Carbon-12 and 20 are Carbon-14, calculate the average atomic mass of the sample.
💡 Hint: Consider that the average mass is a weighted average based on proportions.
Question 2
Describe how increasing the number of neutrons could affect the stability of an isotope and give an example.
💡 Hint: Refer to the concept of nuclear stability and radioactive decay.
Challenge and get performance evaluation