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10 Cards in this Set
- Front
- Back
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atom |
the smallest component of an element
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electron
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a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids
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nucleus
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the central and most important part of an object,movement,or group,forming the basis fir its activity
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proton |
a stable subatomic particle occuring in all atomic nuclei,with a positive electric charge equal in magnitude to that of an electron but oppoiste sign.
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energy level
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the fixed amount of enenrgy that a systm described by quantum mechanics such as a molecule,atom,electron or nucleus can have
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neutron
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a subatomic particle of about the ame mass as aproton but without an electric charge,present in all atomic nuclei except those of ordinary hydrogen
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atomic number
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the number of protons in the nucleus of an atom,which determines the chemical prpoprties of an element
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