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  2. Proton - Wikipedia

    en.wikipedia.org/wiki/Proton

    A proton is a stable subatomic particle, symbol p, H +, or 1 H + with a positive electric charge of +1 e (elementary charge).Its mass is slightly less than the mass of a neutron and approximately 1836 times the mass of an electron (the proton-to-electron mass ratio).

  3. Elementary charge - Wikipedia

    en.wikipedia.org/wiki/Elementary_charge

    The elementary charge, usually denoted by e, is a fundamental physical constant, defined as the electric charge carried by a single proton (+1 e) or, equivalently, the magnitude of the negative electric charge carried by a single electron, which has charge −1 e.

  4. Hydrogen ion - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_ion

    Therefore, the only positively charged ion possible has charge +1. It is noted H +. Depending on the isotope in question, the hydrogen cation has different names: Hydron: general name referring to the positive ion of any hydrogen isotope (H +) Proton: 1 H + (i.e. the cation of protium) Deuteron: 2 H +, D + Triton: 3 H +, T +

  5. Electric charge - Wikipedia

    en.wikipedia.org/wiki/Electric_charge

    Electric charge is a conserved property: the net charge of an isolated system, the quantity of positive charge minus the amount of negative charge, cannot change. Electric charge is carried by subatomic particles. In ordinary matter, negative charge is carried by electrons, and positive charge is carried by the protons in the nuclei of atoms ...

  6. Atom - Wikipedia

    en.wikipedia.org/wiki/Atom

    By 1920 he had accepted that the hydrogen nucleus is a distinct particle within the atom and named it proton. Neutrons have no electrical charge and have a mass of 1.6749 × 10 −27 kg. [37] [38] Neutrons are the heaviest of the three constituent particles, but their mass can be reduced by the nuclear binding energy.

  7. Atomic nucleus - Wikipedia

    en.wikipedia.org/wiki/Atomic_nucleus

    The proton has an approximately exponentially decaying positive charge distribution with a mean square radius of about 0.8 fm. [15] The shape of the atomic nucleus can be spherical, rugby ball-shaped (prolate deformation), discus-shaped (oblate deformation), triaxial (a combination of oblate and prolate deformation) or pear-shaped.

  8. For All This Time, Protons Have Been Hiding Secret Mass ... - AOL

    www.aol.com/time-protons-hiding-secret-mass...

    Physicists have long known that protons are more massive than the stuff that makes them up, but we didn’t know where that mass was located. Now we do. For All This Time, Protons Have Been Hiding ...

  9. Charge number - Wikipedia

    en.wikipedia.org/wiki/Charge_number

    Charges that are positive are called cations. Charges that are negative are called anions. Elements in the same group have the same charge. A group in the periodic table is a term used to represent the vertical columns. The noble gases of the periodic table do not have a charge because they are nonreactive. Noble gases are considered stable ...