Atomic Models Worksheet
Explore the history and development of atomic models, from Dalton to Rutherford to Bohr, with this engaging Grade 8 science worksheet.
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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. Use complete sentences for short answer questions.
1. Which scientist proposed the 'plum pudding' model of the atom, suggesting a sphere of positive charge with electrons embedded within it?
John Dalton
Ernest Rutherford
J.J. Thomson
Niels Bohr
2. The Rutherford gold foil experiment led to the discovery of the:
electron
nucleus
neutron
proton
3. Dalton's atomic theory stated that all atoms of an element are and cannot be or .
4. In the Bohr model, electrons orbit the nucleus in specific energy levels or .
5. Describe how the Bohr model of the atom improved upon Rutherford's model.
6. Label the parts of the atom shown in the diagram.
A:
B:
C:
7. The modern atomic model is often referred to as the electron cloud model.
True
False