Atomic Mass

Today we talked about atomic mass:

1. Z = protons
2. N = neutrons
3. A = mass number = protons + neutrons
4. Atomic mass is an average of mass numbers

The test is next time.

Here are some things that you need to know:

1. c = wavelength x frequency
2. E = hf
3. Electromagnetic spectrum
4. Atomic models (Dalton, Thompson, Rutherford, Bohr, Electron cloud)
5. Electron configurations
6. Noble gas configuration
7. Lewis Dot Structures
8. A = Z + N

Please work some problems in the back of the chapter and come see me if you are confused about anything.

Homework:

  Study for exam