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9 Cards in this Set
- Front
- Back
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What is meant by the mass number?
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The number of protons and neutrons in an element.
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What is meant by the term atomic number
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The number of protons in the nucleus of an atom
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What is an Isotope?
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Isotopes are atoms of the same element which have different mass numbers e.g carbon 12 &13
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Vaporisation (5 Stages of a mass spectrometer)
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The liquids are turned to gases
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Ionisation (5 Stages of a mass spectrometer)
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Gaseous atoms are bombarded by electrons from an electron gun
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Acceleration (5 Stages of a mass spectrometer)
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Ions are charged so they can be accelerated by an electric field
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Deflection (5 Stages of a mass spectrometer)
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Charged particles will be deflected by a magnetic field
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Detection (5 Stages of a mass spectrometer)
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By Electric or photographic Methods
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Aufbau Principle
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When building up the electron configuration of an atom in its ground state the electrons occupy the lowest available energy levels
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