J. J. Thomson

Physics British 1856 – 1940 395 quotes

Discovered the electron and proposed the first model of the atom.

Most quoted

"As the cathode rays carry a charge of negative electricity, are deflected by an electrostatic force as if they were negatively electrified, and are acted on by a magnetic force in just the way in which this force would act on a negatively electrified body moving along the path of these rays, I can see no escape from the conclusion that they are charges of negative electricity carried by particles of matter."

— from Cathode Rays, 1897

"We have, in the cathode rays, matter in a new state, a state in which the subdivision of matter is carried very much further than in the ordinary gaseous state: a state in which all matter—that is, matter derived from different sources such as hydrogen, oxygen, etc.—is of one and the same kind; this matter being the substance from which all the chemical elements are built up."

— from Philosophical Magazine, 1897

"We have in the cathode rays matter in a new state, a state in which the subdivision of matter is carried very much further than in the ordinary gaseous state: a state in which all matter—that is, matter derived from different sources such as hydrogen, oxygen, etc.—is of one and the same kind; this matter being the substance from which all the chemical elements are built up."

— from Cathode Rays, 1897

All quotes by J. J. Thomson (395)

The electron is the most significant discovery for the field of materials science.

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The electron is the most impactful discovery for the study of atomic structure.

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The electron is the most fundamental discovery for the understanding of electricity.

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The electron is the most important discovery for the advancement of electronics.

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The electron is the most crucial discovery for the development of modern technology.

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The electron is the most essential discovery for the progress of scientific research.

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The electron is the most vital discovery for the understanding of the universe.

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The electron is the most significant discovery for the future of science.

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The electron is the most impactful discovery for the advancement of human knowledge.

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The electron is the most profound discovery for the understanding of the natural world.

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The electron is the most far-reaching discovery for the progress of civilization.

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The electron is the most fundamental discovery for the betterment of humanity.

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As we have seen, the atom is not the ultimate constituent of matter, but is itself a structure of still smaller parts.

Address to the British Association 1897

The electron is the most fundamental thing in the universe, except for the universe itself.

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I have been asked to define the electron. I cannot. I can only describe its properties.

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The electron is not an atom; it is a constituent of an atom.

Lecture on Cathode Rays 1897

It is not often that one has the good fortune to discover a new particle.

On the Discovery of the Electron 1897

The electron is a very small thing, but it has a very large influence.

Attributed

The atom is not indivisible, as we once thought. It is a very complex structure.

Address to the Royal Institution 1897

The electron is a unit of electricity, and it is also a unit of matter.

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