2.1 - Discovery of Sub-atomic Particles
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
What are the three main subatomic particles?
💡 Hint: Think about the particles found in an atom.
Who discovered the electron?
💡 Hint: He used cathode rays in his experiments.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the charge of an electron?
💡 Hint: Think about the charge interactions in the atom.
True or False: Protons are neutral particles.
💡 Hint: Remember the role of protons in the nucleus.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Calculate the charge of one mole of electrons.
💡 Hint: Use Avogadro's number to scale up the charge of a single electron.
Discuss the implications of Chadwick's discovery of the neutron on the atomic model.
💡 Hint: Contemplate how this affects an atom's overall charge.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.