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Good ol' J. J. Thomson my man. Using cathode rays
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∙ 14y ago
J.J. Thomson first postulated the existence of the electron in 1897 through his experiments with cathode rays. He proposed that cathode rays were composed of negatively charged particles, which he called "corpuscles" and later became known as electrons.
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∙ 15y agoNiels Bohr
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Who postulated the existence of temporary dipole attraction among nonpolar molecules?
dalton
Which scientist first postulated the existence of ions?
Michael Faraday is credited with first postulating the existence of ions in 1834. He observed that chemical compounds decompose into electrically charged particles when dissolved in water and demonstrated that electric current could flow through a solution of ions.
Who proved the existence of the electron?
The existence of the electron was first proven by J.J. Thomson in 1897 through his experiments with cathode rays. Thomson's discovery of the electron helped lay the foundation for modern atomic theory.
What information does the first quantum of an electron give?
The energy level the electron is in
What information does the first quantum number of an electron give?
The energy level the electron is in
Which scientist first postulated the existence of ions?
Michael Faraday is credited with first postulating the existence of ions in 1834. He observed that chemical compounds decompose into electrically charged particles when dissolved in water and demonstrated that electric current could flow through a solution of ions.
Austrian physicist who postulated the existence of the neutrino?
Wolfgang Pauli
Who postulated the existence of temporary dipole attraction among nonpolar molecules?
dalton
What is the achievements of the Greece philosopher Democritus?
Democritus and his mentor Leucippus postulated the existence of the atom.
Who postulated the existence of the neutrino?
Walter Baade and Fritz Zwicky proposed the existence of the neutron star in 1934. Antony Hewish and Samuel Okoye discovered "an unusual source of high radio brightness temperature in the Crab Nebula" in 1965, which turned out to be the Crab Nebula neutron star.
Who proposed the existence of electron?
‎J. J. Thomson discovered the electron in experiments done in 1897.
Was niels bohr the first to come up with the atom?
No. Ancient Greek philosophers postulated the existence of atoms.In 1803, John Dalton proposed an atom to explain chemical reactions that had been observed by scientists since the 1800's.
Which particle did j.j. Thomson discover?
The first discovery of a subatomic particle would come in 1897, when J.J. Thompson first discovered evidence for the existence of the electron.
What was the name of the scientist that first postulated the theory of atomic structure?
The scientist who first postulated the theory of atomic structure was John Dalton. He proposed his atomic theory in the early 19th century, suggesting that elements are composed of indivisible particles called atoms.
Describe experimental basis for existence of electrons in an atom?
J.J. Thompson proved the electron's existence through the cathode ray experiment.
Who first postulated that continents drift around over the Earth's surface?
Afred Wegener
What is the definition of Postulated?
of Postulate, Assumed without proof; as, a postulated inference.
