3.1.1.1 Particles
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Last updated 8:44 PM on 2/24/25
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12 Terms
1
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atomic number
number of protons
2
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atomic mass
number of protons and electrons
3
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relative isotopic mass
mass of an isotope relative to 1/12th a carbon-12 atom
4
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isotope
an atom with the same number of protons and electrons but a different number of neutrons
5
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relative atomic mass
mass of an atom relative to 1/12th a carbon-12 atom
6
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relative molecular mass
sum of all the molecules relative atomic masses in a compound
7
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what is the charge of an electron
-1
8
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what is the charge of a proton
+1
9
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what is the charge of a neutron
0
10
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what is the mass of an electron
1/2000
11
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what is the mass of a proton
1
12
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what is the mass of a neutron
1
