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Test 1 Notes

Pima/Mesa 12/07 Chemistry

QuestionAnswer
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.
Created by: annabannana
 

 



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