Key words for GCSE Physics
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atom |
An atom is the smallest particle of an element that can exist.
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proton |
A proton has a positive charge and is found in the nucleus of an atom.
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neutron |
A neutron has no charge and is found in the nucleus of an atom.
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electron |
An electron is part of an atom that has a negative charge. Electrons are found in shells.
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nucleus |
The nucleus is the centre of an atom and has a positive charge.
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nuclei |
Nuclei is the plural of nucleus.
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isotope |
An isotope is an atom that contains the same number of protons but different numbers of neutrons.
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source |
The source of something is the place where it comes from.
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alpha |
Alpha particles contain two protons and two neutrons.
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beta |
A beta particle is a high-speed electron.
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particle |
A beta particle is a high-speed electron.
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