1913 ⟶ Mass Spectrometry Technique
J. J. Thomson expanding on the work of Wien, shows that char...
Year
1898
1913
⚛️ Wien Demonstrates Deflection of Canal Rays by Magnetic Fields
Wilhelm Wien demonstrates that canal rays (streams of positive ions) can be deflected by magnetic fields, and that the amount of deflection is proportional to the mass-to-charge ratio. This discovery would lead to the analytical technique known as mass spectrometry.⟶
PhysicsMass SpectrometryIonCanal RaysMagnetic FieldsWilhelm WienAnalytical Chemistry19th Century Physics
Germany🔬 Mass Spectrometry Technique
J. J. Thomson expanding on the work of Wien, shows that charged subatomic particles can be separated by their mass-to-charge ratio, a technique known as mass spectrometry.⟶
Mass SpectrometryJ.J. ThomsonAnalytical ChemistryIsotopesSpectroscopyEarly 20th Century Chemistry
United Kingdom⚛️ Concept of Isotopes Proposed
Frederick Soddy proposes the concept of isotopes, that elements with the same chemical properties may have differing atomic weights.⟶
IsotopesRadioactivityFrederick SoddyNuclear ChemistryAtomic PhysicsEarly 20th Century Chemistry
United Kingdom