Warm Up- Tuesday September 4, 2012

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Presentation transcript:

Warm Up- Tuesday September 4, 2012 List as many differences as you can between these two superheros.

There are two main locations in an atom. Nucleus – contains the protons and neutrons. Electron Cloud – Contains electrons.

Nucleus The nucleus of an atom contains almost all of the mass of the atom. Therefore , the mass # is the sum of the protons + the neutrons.

Electron Clouds Electrons travel around the nucleus in a region called the electron cloud. It is impossible to determine the exact location of an electron within the cloud at any particular moment.