AQA Physical Chemistry AS and A2

  • Created by: Nev045
  • Created on: 11-04-18 16:17
What are the three fundamental particles that make up an atom?
Protons, Neutrons and Electrons
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What are the properties of a neutron?
Relative Mass: 1 Relative Charge: 0 (neutral - no charge)
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What are the properties of a proton?
Relative Mass: 1 Relative Charge: +1
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What are the properties of an electron?
Relative Mass: 1/2000 , 0 Relative Charge: -1
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Define 'Mass Number'
The total number of protons and neutrons in the nucleus of an atom
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Define 'Atomic (Proton) Number'
The number of protons in the nucleus of an atom
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Whats the overall charge of an atom?
0 / neutral / no charge
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How do atoms form ions?
By losing or gaining electrons
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What is an Isotope?
An atom with the same number of atoms as another atom but a different number of neutrons
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Why do isotopes of an element have the same chemical properties?
Because they all have the same electron configuration
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Define 'Relative Atomic Mass'
The average mass of an atom of an element on a scale where an atom of carbon-12 is exactly 12
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Define 'Relative Molecular Mass'
The average mas of a molecule on a scale where an atom of carbon-12 is excatly 12
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Other cards in this set

Card 2

Front

What are the properties of a neutron?

Back

Relative Mass: 1 Relative Charge: 0 (neutral - no charge)

Card 3

Front

What are the properties of a proton?

Back

Preview of the front of card 3

Card 4

Front

What are the properties of an electron?

Back

Preview of the front of card 4

Card 5

Front

Define 'Mass Number'

Back

Preview of the front of card 5
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