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Purdue University- CHM 11500 Exam questions and answers Graded A+ latest update atomic number - the number of protons in the nucleus of an atom mass number - the sum of the number of neutrons and protons in an atomic nucleus isotopes - Atoms with the
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Purdue University- CHM 11500 Exam questions and answers Graded A+ latest update atomic number - the number of protons in the nucleus of an atom mass number - the sum of the number of neutrons and protons in an atomic nucleus isotopes - Atoms with the same number of protons but different numbers of neutrons cation - an ion with a positive charge anion - an ion with a negative charge law of mass conservation - total mass of substances does not change during a chemical reaction law of multiple proportions - In two compounds of the same elements, the mass fraction of one element relative to other charg
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