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electron

Upper-Intermediate (B2)

IPA: /ɪˈlɛktrɒn/

KK: /ɪˈlɛktrɒn/

noun
Definition

A very small particle that has a negative electric charge and is found in atoms. Electrons are important for electricity and chemical reactions.


Example

Electrons move around the nucleus of an atom and play a key role in electricity.


Conversation
Sloth A
Have you ever thought about how an electron moves in an atom?
Sloth B
Yeah, it's fascinating how tiny particles can affect everything around us.
Sloth A
I read that electrons are essential for electricity to flow.
Sloth B
Exactly! Without electrons, we wouldn't have most of our technology.

Synonyms & Antonyms
Synonyms
lepton
particle
ion
Antonyms
positron
nucleus
proton
Root Explanation

Electron → It is derived from the Greek word "ēlektron" (meaning amber). The term originally referred to the property of amber to attract small particles when rubbed, which is related to the discovery of electrons as fundamental particles in electricity.

Memory Tip

Think of 'amber' ('ēlektron') and remember that 'electron' refers to a particle that is fundamental to electricity, just like amber was fundamental to early studies of static electricity.

Visually Confused Words
coelectron
plectron
subelectron
selection
relection
alectryon
alectrion
unelectronic
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