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  2. Hydrogen ion - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_ion

    A hydrogen ion is created when a hydrogen atom loses an electron.A positively charged hydrogen ion (or proton) can readily combine with other particles and therefore is only seen isolated when it is in a gaseous state or a nearly particle-free space. [1]

  3. Ion - Wikipedia

    en.wikipedia.org/wiki/Ion

    Ammonia can also lose an electron to gain a positive charge, forming the ion NH + 3. However, this ion is unstable, because it has an incomplete valence shell around the nitrogen atom, making it a very reactive radical ion.

  4. Ionization - Wikipedia

    en.wikipedia.org/wiki/Ionization

    The electron then interacts with the laser field where it is accelerated away from the nuclear core. If the electron has been ionized at an appropriate phase of the field, it will pass by the position of the remaining ion half a cycle later, where it can free an additional electron by electron impact.

  5. Redox - Wikipedia

    en.wikipedia.org/wiki/Redox

    "Redox" is a portmanteau of the words "REDuction" and "OXidation." The term "redox" was first used in 1928. [6]Oxidation is a process in which a substance loses electrons. Reduction is a process in which a substance gains electr

  6. Degree of ionization - Wikipedia

    en.wikipedia.org/wiki/Degree_of_ionization

    However, the term fully ionized is also used to describe an ion that has no electrons left. [ 1 ] Ionization refers to the process whereby an atom or molecule loses one or several electrons from its atomic orbital , or conversely gains an additional one, from an incoming free electron (electron attachment).

  7. Ionization energy - Wikipedia

    en.wikipedia.org/wiki/Ionization_energy

    Transitioning to a new period: an alkali metal easily loses one electron to leave an octet or pseudo-noble gas configuration, so those elements have only small values for IE. Moving from the s-block to the p-block: a p-orbital loses an electron more easily. An example is beryllium to boron, with electron configuration 1s 2 2s 2 2p 1. The 2s ...

  8. Ionic radius - Wikipedia

    en.wikipedia.org/wiki/Ionic_radius

    When an atom loses an electron to form a cation, the other electrons are more attracted to the nucleus, and the radius of the ion gets smaller. Similarly, when an electron is added to an atom, forming an anion, the added electron increases the size of the electron cloud by interelectronic repulsion.

  9. Ionic bonding - Wikipedia

    en.wikipedia.org/wiki/Ionic_bonding

    When sodium (Na) and chlorine (Cl) are combined, the sodium atoms each lose an electron, forming cations (Na +), and the chlorine atoms each gain an electron to form anions (Cl −). These ions are then attracted to each other in a 1:1 ratio to form sodium chloride (NaCl). Na + Cl → Na + + Cl − → NaCl