Cht 5 - Electrons in Atoms

This unit examines the evolution of our modern model of the atom including in-depth examinations of the behavior of electrons. The following learning objectives will be addressed:

1. Discuss how the energy associated with individual atoms and molecules can be used to identify the substances they comprise.
2. Describe how each atom or molecule can only gain or lose energy in particular discrete amounts and give an example of this phenomenon.
3. Discuss the evolution of the modern models of the atom from Rutherford to Bohr to the Quantum-Mechanical model.
4. Discuss the interaction between light and matter in terms of quantum theory.
5. Describe a wave in terms of its properties and identify the major regions of the electromagnetic spectrum.
6. Explain what is meant by a quantum of energy and relate the energy of radiation to its frequency.
7. Determine the electron configuration of several elements and ions.
8. Explain the relationship between the periodic table and electron configurations including numbers of valence electrons.
9. Predict trends on the periodic table for ionization energy, atomic size and electronegativity.

Flashcards for the key terms and concepts for this unit can be found on quizlet.com and searching on knordy and then choosing the Chemistry 101 JHS course.