Journal Entry:

If wavelength of light is 550 nm what is the frequency of that light? What about energy?

Learning Intentions

• You will understand why the classical shell model of an atom has been refined to the quantum mechanical model using data from line spectra, and ionization energy.

•  You will learn how light is used to analyze the electronic structure of an atom.

• You will learn what frequency, wavelength and energy of a wave mean and how they relate to one another in light waves.

• You will learn ways to excite electrons and what the energy emitted from excited electrons looks like. 

• You will learn how to use the light equations c=ʎv and E=hv to solve for unknown variables.

Closing task:

You can solve light wavelength, frequency and energy equations and understand how they connect to electron structure of the atom. 

Content Standards being covered:

The currently accepted best model of the atom is based on the quantum mechanical model. (EK 1.C.2)

The interaction of electromagnetic waves or light with matter is a powerful means to probe the structure of atoms and molecules and to measure their concentration. (EK 1.D.3)