C1 - Atoms
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Last updated 7:43 PM on 3/31/26
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15 Terms
1
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What is the radius of an atom?
0.1 nanometers
2
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What does the nucleus contain in an atom?
Protons and neutrons
3
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Where is the nucleus in the atom?
Centre
4
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What charge does the nucleus have?
Positive
5
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Where are electrons in the atom?
Orbit around the nucleus in electron shells.
6
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What is the relative mass of a proton?
1
7
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What is the relative mass of a neutron?
1
8
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What is the relative mass of an electron?
Very small
9
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What is the charge of a proton?
+1
10
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What is the charge of a neutron?
0
11
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What is the charge of an electron?
-1
12
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What is the charge of an atom?
Neutral
13
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What is the mass number?
Protons + neutrons
14
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What is the atomic number?
Protons/electrons
15
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How do you find neutrons in an atom?
Mass number - atomic number
