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  2. Elementary charge - Wikipedia

    en.wikipedia.org/wiki/Elementary_charge

    In this case, one says that the "elementary charge" is three times as large as the "quantum of charge". On the other hand, all isolatable particles have charges that are integer multiples of e. (Quarks cannot be isolated: they exist only in collective states like protons that have total charges that are integer multiples of e.)

  3. Proton - Wikipedia

    en.wikipedia.org/wiki/Proton

    Protons have a positive charge distribution, which decays approximately exponentially, with a root mean square charge radius of about 0.8 fm. [21] Protons and neutrons are both nucleons, which may be bound together by the nuclear force to form atomic nuclei.

  4. Charge number - Wikipedia

    en.wikipedia.org/wiki/Charge_number

    In that case, the charge of an ion could be written as =. The charge number in chemistry normally relates to an electric charge. This is a property of specific subatomic atoms. These elements define the electromagnetic contact between the two elements. A chemical charge can be found by using the periodic table.

  5. Atom - Wikipedia

    en.wikipedia.org/wiki/Atom

    There are two types of quarks in atoms, each having a fractional electric charge. Protons are composed of two up quarks (each with charge + ⁠ 2 / 3 ⁠) and one down quark (with a charge of − ⁠ 1 / 3 ⁠). Neutrons consist of one up quark and two down quarks. This distinction accounts for the difference in mass and charge between the two ...

  6. Hydrogen compounds - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_compounds

    Water molecules have two hydrogen atoms and one oxygen atom. While H 2 is not very reactive under standard conditions, it does form compounds with most elements. Hydrogen can form compounds with elements that are more electronegative, such as halogens (F, Cl, Br, I), or oxygen; in these compounds hydrogen takes on a partial positive charge. [1]

  7. Protonation - Wikipedia

    en.wikipedia.org/wiki/Protonation

    In chemistry, protonation (or hydronation) is the adding of a proton (or hydron, or hydrogen cation), usually denoted by H +, to an atom, molecule, or ion, forming a conjugate acid. [1] (The complementary process, when a proton is removed from a Brønsted–Lowry acid, is deprotonation.) Some examples include The protonation of water by ...

  8. Hypercharge - Wikipedia

    en.wikipedia.org/wiki/Hypercharge

    The nucleon group (protons with Q = +1 and neutrons with Q = 0 ) have an average charge of ⁠+ + 1 / 2 ⁠, so they both have hypercharge Y = 1 (since baryon number B = +1 , and S = C = B′ = T′ = 0). From the Gell-Mann–Nishijima formula we know that proton has isospin I 3 = ⁠+ + 1 / 2 ⁠, while neutron has I 3 = ⁠− + 1 / 2 ⁠.

  9. Ate complex - Wikipedia

    en.wikipedia.org/wiki/Ate_complex

    A lyate ion is a generic solvent molecule that has become a negative ion by loss of one or more protons. The -ate suffix also applies to negative fluoroanions, fluorides which have gained one or more protons and twice as many electrons. Tetrafluoroborate, BF − 4, is boron trifluoride, BF 3, which has gained one fluoride and two electrons.