Atomic Models Worksheet

Atomic Models Worksheet

Read each question carefully and provide your best answer based on your knowledge of atomic models. Show all work where applicable.

1. Which atomic model first proposed that electrons orbit the nucleus in specific energy levels?

2. The discovery of the electron led to the proposal of which atomic model?

3. In the Rutherford model, the atom's positive charge and most of its mass are concentrated in a small region called the  .

4. The   model describes electrons in terms of probabilities of finding them in certain regions around the nucleus, known as orbitals.

5. Dalton's atomic theory stated that atoms of the same element are identical in all respects.

6. The Bohr model successfully explained the spectra of multi-electron atoms.

7. Briefly describe the main contribution of J.J. Thomson to the understanding of atomic structure.

8. Explain why the Rutherford model is also known as the 'nuclear model' of the atom.

Match each scientist with their primary associated atomic model or discovery.

13. Observe the atomic model below and answer the following questions:

a) Which historical atomic model does this diagram most closely represent?

b) What are the main limitations of this particular model?