General Chemistry UPDATED Test Questions And CORRECT Answers
Atomic Number vs mass number vs. atomic mass vs. atomic weight vs. molecular weight atomic number-Z=protons mass number- A=sum of protons and neutrons -atomic mass: mass number ^^ -atomic weight: weighted average of naturally occurring isotopes (12.011) -molecular weight: add up the atomic weights of each element in a compound subatomic charges aka charge of an electron e= 1.6 x 10^-19 1 electron weighs 1/2000 of a proton
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