Atomic Models Worksheet
Explore the historical development of atomic models and their key features, from early ideas to the Bohr model.
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Atomic Models Worksheet
Name:
Date:
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Read each question carefully and answer to the best of your ability. For multiple choice questions, circle the correct option.
1. Which scientist proposed the 'plum pudding' model of the atom?
John Dalton
J.J. Thomson
Ernest Rutherford
Niels Bohr
2. The Rutherford model suggested that atoms have a small, dense, positively charged center called the:
Electron cloud
Proton
Nucleus
Neutron
3. According to Dalton's atomic theory, atoms of the same element are in size and mass.
4. In the Bohr model, electrons orbit the nucleus in specific energy levels or .
5. The 'plum pudding' model proposed that electrons were embedded in a sphere of uniform positive charge.
True
False
6. The current atomic model is often referred to as the electron cloud model.
True
False
7. Briefly describe one major difference between the Rutherford model and the Bohr model of the atom.
8. Label the parts of the Bohr model of the atom shown below:
A:
B:
C: