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2.1.1 atomic structure and isotopes

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Total cards: 9•Content version: v4•Public deck•Updated: 8/1/2026

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#1
Front (Question)

isotopes are…

Back (Answer)

atoms of the same element with the same number of protons but different number of neutrons

#2
Front (Question)

give two properties of isotopes

Back (Answer)

• similar chemical properties * same electronic structure

#3
Front (Question)

relative isotopic mass is …

Back (Answer)

the mass of one isotope compared to one twelfth of the mass of one atom of carbon 12

#4
Front (Question)

relative atomic mass is …

Back (Answer)

the average mass of an atom compared to one twelfth of the mass of one atom of carbon 12

#5
Front (Question)

relative molecular mass is …

Back (Answer)

the average mass of a molecule compared to one twelfth of the mass on one atom of carbon 12

#6
Front (Question)

give the names, relative masses and relative charges of the three sub atomic particles

Back (Answer)

proton 1 +1 neutron 1 0 electron 1/1800 -1

#7
Front (Question)

calculating relative atomic mass with % abundance

Back (Answer)

isotopic mass x % abundance / 100

#8
Front (Question)

calculating relative atomic mass with relative abundance

Back (Answer)

isotopic mass x relative abundance / total relative abundance

#9
Front (Question)

calculating relative abundance

Back (Answer)

rearrange this equation relative atomic mass = (isotopic mass x X) + (isotopic mass x 100-X) / 100