Explain the formation of following ions
(i) Sodium (ii) Magnesium
(iii) Aluminium
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(i) A sodium ion is formed when a neutral sodium atom looses their valence electron so that they can become stable. Once they loose an electron, they will have more positive charges, making them a charged atom which is an ion.
(ii) Magnesium will act as donor atom while chlorine act as accepter atom. Magnesium transfers its two electrons to two chlorine atom and it forms ionic bond. The attached figure shows the transfer of electrons. As a result, forms.
(iii) Cations are the positive ions formed by the loss of one or more electrons. In this case, the magnesium atom loses its two valence electrons in order to achieve the same noble-gas configuration. ... The aluminium atom loses its three valence electrons.
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