What is a cation & anion? How are they formed?
Answer:
cations and anion are ions.
ions are particles that give or take or share electrons.
cation- they carry positive charge
anion- they carry negative charge
In negative ions, anions, the interaction of each electron with the positive nucleus is strongly suppressed; they are very loosely bound systems. Contrary to all other atomic electrons, the extraneous electron in negative ions is initially not bound by the Coulomb interaction, but by polarization of the neutral atom. Due to the short range of this interaction, negative ions have no Rydberg series, but only a few, if any, bound excited states.
Cation: a cation is an ion with a positive charge. It is the inverse anion.
cation are negatively charged ions while anions are positively charged ions
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