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proton
1. An elementary particle with a mass about 1,836 times that of the electron and a positive charge, equal and opposite to that of the electron.
2. An atomic particle with high mass and a positive charge, present in the nuclei of all atoms.
2. An atomic particle with high mass and a positive charge, present in the nuclei of all atoms.
The nucleus of a hydrogen atom is a single proton.
This entry is located in the following unit:
Astronomy and related astronomical terms
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