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# electron

«electron» in Mova's school dictionary: **a tiny particle, much smaller than an atom, that has a…** — its meaning for a pupil, its sense in the lessons and examples, with 4 sentences of Mova's corpora that use it.

### part of speech

noun (an electron, electrons)

### meaning for a pupil

1) An electron is a tiny particle, much smaller than an atom, that has a negative electric charge and moves around the nucleus (centre) of an atom. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#m1)

2) When many electrons flow through a wire, that flow is an electric current. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#m2)

### sense in the lessons

In science lessons about electricity and atoms, electrons carry electric current through wires in circuits; metals let electrons flow easily (conductors), while plastic and rubber do not (insulators). Static electricity happens when electrons move from one thing to another, like rubbing a balloon on your hair. Phrases: flow of electrons, negative charge, protons, neutrons and electrons.

### examples

- An electron has a negative charge. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x1)
- Electrons flow through the copper wire. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x2)
- An atom has protons and neutrons in the middle and electrons around them. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x3)
- When you rub a balloon, electrons move onto it. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x4)
- Electrons are far too small to see, even with a microscope. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x5)
- Electricity is a flow of electrons in a circuit. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x6)
- A proton has a positive charge, and an electron has a negative one. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x7)
- Electrons move easily in metals, so metals conduct electricity. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/#x8)

### note

Countable: an electron (use «an»), electrons. Pronounced «ih-LEK-tron». Related words: electric, electricity, electronic. Simplified pictures show electrons orbiting like planets, but scientists now describe them as clouds around the nucleus. Opposite charges attract: electrons (negative) are attracted to protons (positive).

### In the corpora

- [An atom is made of smaller parts: protons and neutrons in a tiny middle called the nucleus, and electrons around it.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/1-what-is-everything-made-of/13/)
- [Your hand does not sink into a table because the electrons in your hand and in the table push each other away.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/1-what-is-everything-made-of/15/)
- [Lightning and glowing signs contain plasma, a fourth state: gas so hot or charged that its atoms lose electrons.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/4-solids-liquids-and-gases/17/)
- [Metals let electricity flow because they have loose electrons that can drift along; plastic, rubber and wood block it.](https://md.mova.elamur.ai/free/en/corpora/school/physics/27-batteries-circuits-and-how-electricity-flows/8/)

### Trees and pragmatics

[Every meaning and example of «electron» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/electron/), each sentence with its dependency tree and frames.