mass and the mass spectrometer
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8 Terms
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Atomic mass
Weighted average
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Mass number
Proton electron number
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Relative mass
The mean mass of an atom/molecule of an element compared to 1/12th the mass of a 12 carbon atom
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Electron impact
Shooting an electron at an isotope to knock of electrons to form a +1 ions
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Electron spray
Adding a H+ ion to the isotope which increases mass and the charge
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Acceleration of ions
All ions have same kinetic energy
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Time of flight
Lighter ions travel faster
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Detection
A current is produced when ions hit a negatively charged detection plate
More hits=bigger current
Note 
Flashcards (20)