Electron
noun
A very small particle of matter that is part of an atom and has a negative electric charge.
Electrons move around the nucleus of an atom at a high speed.
Often appears as...
- valence electron
- electron microscope
Usage tips
General, Academic,Technical
noun
A subatomic particle that is used in electronics, especially in computer technology.
The flow of electrons can be controlled by a semiconductor.
Often appears as...
- electron flow
- electron beam
Usage tips
Technical
noun
A very small particle of matter that is part of an atom and has a negative electric charge.
Electrons move around the nucleus of an atom at a high speed.
Often appears as...
- valence electron
- electron microscope
Usage tips
General, Academic,Technical
noun
A subatomic particle that is used in electronics, especially in computer technology.
The flow of electrons can be controlled by a semiconductor.
Often appears as...
- electron flow
- electron beam
Usage tips
Technical
Definition 1 of 2
Pro Tip 1/3Atomic Structure
Electrons are fundamental for understanding atoms in physics and chemistry.
Atoms consist of protons, neutrons, and electrons.
Pro Tip 2/3Negative Charge
Electrons carry a negative charge that balances the positive charge of protons.
The electron's negative charge attracts it to the positively charged protons.
Pro Tip 3/3Electricity Basics
Movement of electrons creates electricity, a fundamental concept in physics.
Electric currents are flows of electrons through a conductor.
Pro Tip 1/3Atomic Structure
Electrons are fundamental for understanding atoms in physics and chemistry.
Atoms consist of protons, neutrons, and electrons.
Pro Tip 2/3Negative Charge
Electrons carry a negative charge that balances the positive charge of protons.
The electron's negative charge attracts it to the positively charged protons.
Pro Tip 3/3Electricity Basics
Movement of electrons creates electricity, a fundamental concept in physics.
Electric currents are flows of electrons through a conductor.
Pro Tip 1/3Atomic Structure
Electrons are fundamental for understanding atoms in physics and chemistry.
Atoms consist of protons, neutrons, and electrons.
Pro Tip 2/3Negative Charge
Electrons carry a negative charge that balances the positive charge of protons.
The electron's negative charge attracts it to the positively charged protons.
Pro Tip 3/3Electricity Basics
Movement of electrons creates electricity, a fundamental concept in physics.
Electric currents are flows of electrons through a conductor.
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Video examples
Questions No One Knows...
is intimately connected to those distant, invisible galaxies. We can think of them as part of our universe. They make up a single, giant edifice obeying the same physical laws and all made from the same types of atoms, electrons, protons, quarks, neutrinos, that make up you and me.
Video examples
Could we create dark...
what each of these particles is, things like photons and electrons. Now, the detectors take snapshots of about a billion of these collisions per second to find signs of extremely rare massive particles. To add to the difficulty, the particles we're looking for may be unstable
Video examples
What is the Smallest...
ultimately depends on the basic laws of physics it depends on the size of molecules which depends on the size of atoms which depends on fundamental properties of the universe like the strength of the force of electromagnetism and the mass of an electron and when you do those
Video examples
Schrödinger's cat: A...
like a particle. But if you repeat this experiment many times, keeping track of all the individual detections, you'll see them trace out a pattern that's characteristic of wave a set of stripes - regions with many electrons separated by regions where there are none at all.
Video examples
How batteries work -...
making more electrons available for oxidation the next time you need them. But even rechargeable batteries don't last forever. Over time, the repetition of this process causes imperfections and irregularities in the metal's surface that prevent it from oxidizing properly.
Video examples
Will we ever be able to...
The answer can be found in the strange phenomena of quantum entanglement. Entanglement is an old mystery from the early days of quantum physics and it's still not entirely understood. Entangling the spin of two electrons results in an influence that transcends distance.
Video examples
Why is our universe...
so electrons, quarks, neutrinos, photons, all other particles would be united into a single framework, as they would all arise from vibrating strings. It's a compelling picture, a kind of cosmic symphony, where all the richness that we see in the world around us
Video examples
Origins of the Universe...
The universe at this time was piping hot and it churned with electrons, quarks, and other particles. Then came the electroweak epoch, when the last two forces, electromagnetic and weak, finally split off. During the next stage, the quark epoch,
Video examples
The science of static...
is what we recognize as that sudden spark. This process doesn't happen with just any objects. Otherwise you'd be getting zapped all the time. Conductors like metals and salt water tend to have loosely bound outer electrons,
Video examples
Demystifying quantum...
so I'm going to tell you the most amazing thing I know which is this everything in the universe from light to electrons to atoms behaves like both a
Video examples
Questions No One Knows...
is intimately connected to those distant, invisible galaxies. We can think of them as part of our universe. They make up a single, giant edifice obeying the same physical laws and all made from the same types of atoms, electrons, protons, quarks, neutrinos, that make up you and me.
Video examples
Could we create dark...
what each of these particles is, things like photons and electrons. Now, the detectors take snapshots of about a billion of these collisions per second to find signs of extremely rare massive particles. To add to the difficulty, the particles we're looking for may be unstable
Video examples
What is the Smallest...
ultimately depends on the basic laws of physics it depends on the size of molecules which depends on the size of atoms which depends on fundamental properties of the universe like the strength of the force of electromagnetism and the mass of an electron and when you do those
Video examples
Schrödinger's cat: A...
like a particle. But if you repeat this experiment many times, keeping track of all the individual detections, you'll see them trace out a pattern that's characteristic of wave a set of stripes - regions with many electrons separated by regions where there are none at all.
Video examples
How batteries work -...
making more electrons available for oxidation the next time you need them. But even rechargeable batteries don't last forever. Over time, the repetition of this process causes imperfections and irregularities in the metal's surface that prevent it from oxidizing properly.
Video examples
Will we ever be able to...
The answer can be found in the strange phenomena of quantum entanglement. Entanglement is an old mystery from the early days of quantum physics and it's still not entirely understood. Entangling the spin of two electrons results in an influence that transcends distance.
Video examples
Why is our universe...
so electrons, quarks, neutrinos, photons, all other particles would be united into a single framework, as they would all arise from vibrating strings. It's a compelling picture, a kind of cosmic symphony, where all the richness that we see in the world around us
Video examples
Origins of the Universe...
The universe at this time was piping hot and it churned with electrons, quarks, and other particles. Then came the electroweak epoch, when the last two forces, electromagnetic and weak, finally split off. During the next stage, the quark epoch,
Video examples
The science of static...
is what we recognize as that sudden spark. This process doesn't happen with just any objects. Otherwise you'd be getting zapped all the time. Conductors like metals and salt water tend to have loosely bound outer electrons,
Video examples
Demystifying quantum...
so I'm going to tell you the most amazing thing I know which is this everything in the universe from light to electrons to atoms behaves like both a
Example 1 of 10
Quote examples
Jacques Dubochet
Swiss Scientist
It would be great if you could cool the water and immobilise the molecules, though keeping the structure, because when it's frozen, when it's immobilised, you can have it in the electron microscope and the water will not evaporate because in the electron microscope, it must be under vacuum, and water at normal temperature evaporates.
Quote examples
Gilbert Newton Lewis
American Scientist
We may say that a basic substance is one which has a lone pair of electrons which may be used to complete the stable group of another atom, and that an acid is one which can employ a lone pair from another molecule in completing the stable group of one of its own atoms.
Quote examples
Tom Freston
American Businessman
I always imagined myself somehow as an electron around some atom, and you're just, like, bouncing around and spinning. There was a never-ending supply of places to go, people to see, things to do, and fitting it all in became kind of an art.
Quote examples
Werner Heisenberg
German Physicist
The uncertainty relation does not refer to the past; if the velocity of the electron is at first known and the position then exactly measured, the position for times previous to the measurement may be calculated.
Quote examples
Ivar Giaever
Norwegian Physicist
While classical mechanics correctly predicts the behavior of large objects such as tennis balls, to predict the behavior of small objects such as electrons, we must use quantum mechanics.
Quote examples
Johannes Stark
Physicist
We have learnt through experience that when an electrical ray strikes the surface of an atom, an electron, and in some circumstances a second and even a third electron, can be detached.
Quote examples
Gunter Blobel
German Scientist
In basic research, the use of the electron microscope has revealed to us the complex universe of the cell, the basic unit of life.
Quote examples
Fabiola Gianotti
Italian Physicist
We had to understand things like why the top quark was so heavy and the electron is so light. The Higgs is a big, important step.
Quote examples
Erik Prince
American Businessman
There are some phone calls where it's not even worth wasting the electrons on.
Quote examples
Frederick Reines
American Physicist
In 1956 we observed the electron antineutrino.
Quote examples
Jacques Dubochet
Swiss Scientist
It would be great if you could cool the water and immobilise the molecules, though keeping the structure, because when it's frozen, when it's immobilised, you can have it in the electron microscope and the water will not evaporate because in the electron microscope, it must be under vacuum, and water at normal temperature evaporates.
Quote examples
Gilbert Newton Lewis
American Scientist
We may say that a basic substance is one which has a lone pair of electrons which may be used to complete the stable group of another atom, and that an acid is one which can employ a lone pair from another molecule in completing the stable group of one of its own atoms.
Quote examples
Tom Freston
American Businessman
I always imagined myself somehow as an electron around some atom, and you're just, like, bouncing around and spinning. There was a never-ending supply of places to go, people to see, things to do, and fitting it all in became kind of an art.
Quote examples
Werner Heisenberg
German Physicist
The uncertainty relation does not refer to the past; if the velocity of the electron is at first known and the position then exactly measured, the position for times previous to the measurement may be calculated.
Quote examples
Ivar Giaever
Norwegian Physicist
While classical mechanics correctly predicts the behavior of large objects such as tennis balls, to predict the behavior of small objects such as electrons, we must use quantum mechanics.
Quote examples
Johannes Stark
Physicist
We have learnt through experience that when an electrical ray strikes the surface of an atom, an electron, and in some circumstances a second and even a third electron, can be detached.
Quote examples
Gunter Blobel
German Scientist
In basic research, the use of the electron microscope has revealed to us the complex universe of the cell, the basic unit of life.
Quote examples
Fabiola Gianotti
Italian Physicist
We had to understand things like why the top quark was so heavy and the electron is so light. The Higgs is a big, important step.
Quote examples
Erik Prince
American Businessman
There are some phone calls where it's not even worth wasting the electrons on.
Quote examples
Frederick Reines
American Physicist
In 1956 we observed the electron antineutrino.
Example 1 of 10
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