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Structure of an atom
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Total cards: 6•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (6)
#1
Front (Question)
define atom
Back (Answer)
the smallest particle of an element that still has the same properties as that element
#2
Front (Question)
what are the three subatomic particles? Charge, location, mass
Back (Answer)
proton: +1, nucleus, 1 a.m.u neutron: 0 , nucleus, 1 amu electron: -1, electron cloud, 1/1840 amu
#3
Front (Question)
what is the atomic number?
Back (Answer)
no. of protons in the nucleus - the smaller number
#4
Front (Question)
what is the mass number?
Back (Answer)
total no. of protons and neutrons in the nucleus - the bigger no.
#5
Front (Question)
what is the atomic number equal to?
Back (Answer)
protons = electrons (since atoms are neutral)
#6
Front (Question)
how to calculate neutrons?
Back (Answer)
mass - atomic