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.  
Atomic Number  number of protons in the nucleus of an atom  
Atom Nucleus  made up of protons and neutrons, holds the weight of the atom  
Atomic Weight  number of protons and neutrons in the nucleus of an atom, * atomic weights are averages.  
Electron  negatively charged subatomic particle found in the shell of an atom, has no weight  
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.  
Electron Shell Maximum numbers  K-2, L-8, m-18, n-32, o-32, p-18, q-2  
Elements  92 naturally occurring elements, all others are man made  
Neutron  Positively charged, subatomic particle, fond in the nucleus of an atom, with a weight of 1.  
Protron  Nuteraly charged subatomic partical found in the neuclueus of an atom with a weight of 1.  


   

 
 

 
 

 

 
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