EL 1 Where do the chemical elements come from?

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  • Created by: LBCW0502
  • Created on: 18-12-15 14:40
Name the three sub-atomic particles in an atom
Protons, neutrons and electrons
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What are isotopes?
Atoms of a particular element that have the same number of protons and electrons but different numbers of neutrons
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What does mass spectrometry measure?
The atomic or molecular mass of different particles in a sample and the relative abundance of different isotopes in an element
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State the stages of mass spectrometry in the correct order
Ionisation, acceleration, deflection and detection
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What does the height of the peak on a mass spectrometry graph show?
The relative abundance of each ion
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How do you calculate the relative atomic mass using isotopes of a particular element?
Relative isotopic mass x relative abundance / 100
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What is nuclear fusion?
Two lighter nuclei fuse together forming a single heavier nucleus of a new element (e.g. 2 hydrogen nuclei fuse to form a helium nucleus)
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What does the gamma symbol indicate in a nuclear equation?
The release of energy when the fusion reaction occurs
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Other cards in this set

Card 2

Front

What are isotopes?

Back

Atoms of a particular element that have the same number of protons and electrons but different numbers of neutrons

Card 3

Front

What does mass spectrometry measure?

Back

Preview of the front of card 3

Card 4

Front

State the stages of mass spectrometry in the correct order

Back

Preview of the front of card 4

Card 5

Front

What does the height of the peak on a mass spectrometry graph show?

Back

Preview of the front of card 5
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