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cation    
n. 阳离子

阳离子

cation
n 1: a positively charged ion

Cation \Cat"i*on\, n. [Gr. ? downward ? going, p. pr. of ? to
go.] (Chem.)
a positively charged atom, radical, or molecule, which in
electrolysis migrates to the cathode; a positive ion; --
opposed to {anion}. --Faraday.
[1913 Webster PJC]


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  • Cations and Anions: Definitions, Examples, and Differences
    Cations are ions that have a positive charge The word “cation” comes from the Greek word ánō, which means “up ” Examples of cations include: Silver: Ag + Hydronium: H 3 O + Ammonium: NH 4 + Because an electron is removed to form a cation, the cation of an atom can be smaller than the neutral atom
  • The Difference Between a Cation and an Anion - ThoughtCo
    Cations and anions are both ions, but they differ based on their net electrical charge; cations are positive, while anions are negative
  • Cations and anions introduction: - BYJUS
    Cations are positively charged ions They are formed when a metal loses its electrons They lose one or more than one electron It has fewer electrons than protons Therefore, they possess a net positive charge Some examples of cations are Calcium (Ca 2+), Potassium (K +), hydrogen (H +) What are anions? Anions are negatively charged ions
  • Cation vs Anion: Definition, Chart and the Periodic Table
    What is a cation? A cation has more protons than electrons, consequently giving it a net positive charge For a cation to form, one or more electrons must be lost, typically pulled away by atoms with a stronger affinity for them
  • Cations and Anions | Ions - ChemTalk
    What is a cation? A cation is an ion that has lost one or more electrons, giving a net positive charge Because one or more electrons are removed to form a cation, the cation of an atom is smaller than the neutral atom Examples of cations include the following: Calcium: Ca 2+ Silver: Ag + Aluminum: Al 3+ Hydronium ion: H 3 O + Ammonium: ion NH 4 +
  • Anion vs Cation - Difference and Comparison | Diffen
    A cation is an atom or a molecule which is positively charged, i e has more number of protons than electrons Anion originated from the Greek word ano, meaning ‘up’ The word cation originated from its Greek counterpart kata, which means ‘down’
  • 7. 3: Cations - Chemistry LibreTexts
    Some elements lose one or more electrons in forming ions These ions are known as " cations " because they are positively charged and migrate toward the negative electrode (cathode) in an electrical field
  • Cation | chemistry | Britannica
    Cation, atom or group of atoms that bears a positive electric charge See
  • Cation vs. Anion: What’s the Difference?
    The cation, upon losing its electron(s), typically plays a role in facilitating electrical conductivity in solutions In contrast, anions, by accepting those electrons, ensure that charge neutrality is maintained in compounds, thereby sustaining stability in various substances and mixtures
  • Cation - Encyclopedia. com
    A cation is any atom or group of atoms that has a net positive charge While matter is electrically neutral overall, ionic compounds are matter composed of positively and negatively charged particles called ions — any atom or group of atoms with an overall electrical charge





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