Pima/Mesa 12/07 Chemistry
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| Atom | All things are made up of atoms, composed of protons, neutrons and electrons. Actual weight 1.66x10(-24) grams.
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| Atomic Number | number of protons in the nucleus of an atom
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| Atom Nucleus | made up of protons and neutrons, holds the weight of the atom
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| Atomic Weight | number of protons and neutrons in the nucleus of an atom, * atomic weights are averages.
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| Electron | negatively charged subatomic particle found in the shell of an atom, has no weight
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| Electron Shell | The energy level of an atom, all atoms have at least 1 and a max of 7. Each shell holds a minimum of 1 electron and a max of 32, depending on its level K thru Q. Shells are added to keep balance..equal protons and neutrons.
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| Electron Shell Maximum numbers | K-2, L-8, m-18, n-32, o-32, p-18, q-2
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| Elements | 92 naturally occurring elements, all others are man made
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| Neutron | Positively charged, subatomic particle, fond in the nucleus of an atom, with a weight of 1.
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| Protron | Nuteraly charged subatomic partical found in the neuclueus of an atom with a weight of 1.
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