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Atomic mass unit - Measuring relative atomic masses | | Atomic mass unit - Measuring relative atomic masses: Encyclopedia II - Atomic mass unit - Measuring relative atomic masses | | The relative atomic mass is measured with a mass spectrometer. After placing a sample of the element to be measured in the mass spectrometer it is bombarded with electrons which turns the atoms into positive ions. An electric field is then used to accelerate these positive ions, after which the ions are deflected using a magnetic field. As a result the various isotopes are separated out due to the ions of lighter isotopes being deflected more than those heavier. This produces a mass spectrum.
This spectrum provides two things:
Relative iso ...
See also:Atomic mass unit, Atomic mass unit - Measuring relative atomic masses, Atomic mass unit - History | | | Atomic mass unit, Atomic mass unit - History, Atomic mass unit - Measuring relative atomic masses | | |
| | | Atomic mass unit: Encyclopedia II - Atomic mass unit - Measuring relative atomic masses
Atomic mass unit - Measuring relative atomic masses
The relative atomic mass is measured with a mass spectrometer. After placing a sample of the element to be measured in the mass spectrometer it is bombarded with electrons which turns the atoms into positive ions. An electric field is then used to accelerate these positive ions, after which the ions are deflected using a magnetic field. As a result the various isotopes are separated out due to the ions of lighter isotopes being deflected more than those heavier. This produces a mass spectrum.
This spectrum provides two things:
- Relative isotopic masses in the sample
- Abundances of the isotopes
Other related archives1 E-27 kg, 1961, Avogadro's number, Francis Aston, International Union of Pure and Applied Chemistry, International Union of Pure and Applied Physics, John Dalton, SI, atom, atomic masses, atoms, binding energy, biochemistry, carbon-12, chemist, dalton, electric field, element, gram, hydrogen, hydrogen atom, ions, isotopes, kg, magnetic field, mass, mass spectrometer, mass spectrum, mole, molecular biology, molecular masses, molecule, neutrons, nucleus, oxygen, proteins, protons, unit, water
 Adapted from the Wikipedia article "Measuring relative atomic masses", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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