Developing a model for atoms

12 questions

1. What are the three main subatomic particles found in an atom?
2. Which of the following particles is negatively charged?
3. True or false? Protons and electrons have equal but opposite charges.
4. ___, along with protons, make up the nucleus of an atom. They add to the mass of an atom but do not carry a charge.
5. According to the principles of electricity and magnetism, what happens when two electrons come close to each other?
6. True or false? Neutrons have a greater mass than protons.
7. Which scientist is credited with the plum pudding model of the atom?
8. Place the following atomic models in the order they were proposed, starting with the model first proposed:
9. What does the nuclear model of the atom suggest?
10. True or False? Chadwick’s contribution to the atomic model was the discovery of the neutron.
11. Which of the following experiments disproved the plum pudding model?
12. Match the description to the correct atomic model term.

License: OGL