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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Who discovered radioactivity?
π‘ Hint: Think about the scientist who worked with uranium.
Question 2
Easy
What type of particle is emitted in alpha decay?
π‘ Hint: This particle is positively charged.
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 discovery did Henri Becquerel make?
π‘ Hint: Think about his work with uranium.
Question 2
True or False: Alpha particles are negatively charged.
- True
- False
π‘ Hint: Recall their charge.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given that alpha particles are stopped by paper, what materials could you use to shield yourself from beta and gamma radiation when working in a lab?
π‘ Hint: Think about the densities of different materials.
Question 2
If 50g of a radioactive substance has a half-life of 10 days, how much will remain after 40 days?
π‘ Hint: Use the formula: remaining amount = original amount / (2^n) where n is the number of half-lives.
Challenge and get performance evaluation