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Protons

Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom, i.e., the hydrogen ion.

Year introduced: 1966

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Subheadings:

Tree Number(s): D01.248.497.300.459.700, D01.268.406.750, D01.362.340.750, G01.249.660.500

MeSH Unique ID: D011522

Entry Terms:

  • Proton
  • Hydrogen Ions
  • Hydrogen Ion
  • Ion, Hydrogen
  • Ions, Hydrogen

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