an electrons and protons were theorised in the late 1800's and proved shortly after, so its not those,
most recent discovery's have been Quarks, Leptons, and Gauge Bosons. to my knowledge these were all theorised around the 1960's and have pretty much all been officially discovered now. the most recent being the Tau Neutrino in 2000. still a few of the Theorised particles to find though, with the Higgs-Boson being the most famous of the elusive particles. now that the LHC is completed, and only repair bills getting in the way, hopefully there should be some new ones to add to the list pretty soon
cause
If you think to particles in the atom: the neutron was discovered in 1932 by James Chadwick.
Rutherford discovered the atomic nucleus and the proton. A short answer for the Rutherford atomic model: the atom is composed from a central part - a nucleus, positively charged, surrounded by electrons - very small negative charged particles.
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The atom was discorvered by john dalton in the early 1800's
cause
If you think to particles in the atom: the neutron was discovered in 1932 by James Chadwick.
atom
chadwick discovered neutral atom
Rutherford discovered the atomic nucleus and the proton. A short answer for the Rutherford atomic model: the atom is composed from a central part - a nucleus, positively charged, surrounded by electrons - very small negative charged particles.
The nuclear atom was discovered by Ernest Rutherford. He did it with a gold foil experiment.
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no
it was discovered by Henry Cavendish <3
Volta discovered that the atom was the true meaniing of freindship Volta discovered that the atom was the true meaniing of freindship
Neutron. We didn't know about them yet. Chadwick discovered them some time later.
Neutron. We didn't know about them yet. Chadwick discovered them some time later.