Who discovered proton how they discovered?
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Ernest Rutherford...
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The discovery of protons dates back to the year 1815 when the English chemist William Prout suggested that all atoms are made up of hydrogen atoms (which he referred to as protyles). When canal rays (positively charged ions formed by gases) were discovered by the German physicist Eugen Goldstein in the year 1886, it was observed that the charge-to-mass ratio of the hydrogen ion was the highest among all gases. It was also observed that the hydrogen ion had the smallest size among all ionized gases.
The nucleus of the atom was discovered by Ernest Rutherford in the year 1911 in his famous gold foil experiment. He concluded that all the positively charged particles in an atom were concentrated in a singular core and that most of the atom’s volume was empty. He also stated that the total number of positively charged particles in the nucleus is equal to the total number of negatively charged electrons present around it.
Who Discovered Protons?
The discovery of the proton is credited to Ernest Rutherford, who proved that the nucleus of the hydrogen atom (i.e. a proton) is present in the nuclei of all other atoms in the year 1917.
The Proton was Discovered by Ernest Rutherford
Based on the conclusions drawn from the gold-foil experiment, Rutherford is also credited with the discovery of the atomic nucleus.
How was the Proton Discovered?
Ernest Rutherford observed that his scintillation detectors detected hydrogen nuclei when a beam of alpha particles was shot into the air.
After investigating further, Rutherford found that these hydrogen nuclei were produced from the nitrogen atoms present in the atmosphere.
He then proceeded to fire beams of alpha particles into pure nitrogen gas and observed that a greater number of hydrogen nuclei were produced.
He concluded that the hydrogen nuclei originated from the nitrogen atom, proving that the hydrogen nucleus was a part of all other atoms.
This experiment was the first to report a nuclear reaction, given by the equation: 14N + α → 17O + p [Where α is an alpha particle which contains two protons and two neutrons, and ‘p’ is a proton]
The hydrogen nucleus was later named ‘proton’ and recognized as one of the building blocks of the atomic nucleus.
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