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 →

2) When many electrons flow through a wire, that flow is an electric current. tree →

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 →
• Electrons flow through the copper wire. tree →
• An atom has protons and neutrons in the middle and electrons around them. tree →
• When you rub a balloon, electrons move onto it. tree →
• Electrons are far too small to see, even with a microscope. tree →
• Electricity is a flow of electrons in a circuit. tree →
• A proton has a positive charge, and an electron has a negative one. tree →
• Electrons move easily in metals, so metals conduct electricity. tree →

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.
• Your hand does not sink into a table because the electrons in your hand and in the table push each other away.
• Lightning and glowing signs contain plasma, a fourth state: gas so hot or charged that its atoms lose electrons.
• Metals let electricity flow because they have loose electrons that can drift along; plastic, rubber and wood block it.

Trees and pragmatics

Every meaning and example of «electron» parsed by Mova, each sentence with its dependency tree and frames.