Q.3 Define ion. How is ion formed? Describe the formation of Cation in Sodium. (05)
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Cations are the positive ions formedby the loss of one or more electrons. It has one valence electron in the third principal energy level. Upon losing that electron, the sodium ion now has an octet of electrons from the second principal energy level.
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An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions; by combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the ...........
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