electron
Pronunciation
Noun
B1 Intermediate
Quick answer
A tiny particle with a negative electrical charge that moves around the nucleus of an atom.
Usage notes
An electron carries a negative charge, while a proton carries a positive charge, together with neutral neutrons they make up an atom.
Test yourself
Which word fits the gap? "_____ flow through a wire to create an electric current."
Answer: electron
In your own words, what does "electron" mean?
A tiny particle with a negative electrical charge that moves around the nucleus of an atom.
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