Compare the properties such as electronic configuration, nature of oxides of metals and non-metals.

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Solution

(1) Electronic Configuration
Metals generally contain 1,2, or 3 electrons in the outer shell which ionize by losing electrons.
Non-metals contain 4 to 7 electrons in their outer shell and ionize by giving electrons.
(2) Nature of oxides
Oxides of metals are basic in nature except ${Al}_{2} O_{3}$ and $ZnO$ that shows amphoteric nature.
${Na}_{2} O (s) + H_{2} O (l) \to 2 NaOH (aq)$
Oxides of non-metals are acidic except $NO, CO, H_{2} O$ etc. from neutral oxides.
${SO}_{3} (s) + H_{2} O (l) \to H_{2} {SO}_{4} (aq)$

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