What are the similarities and dissimilarities between alkali metals and halogens
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Explanation:
The properties of hydrogen are different from the alkali metals and halogens by-
1. Hydrogen atom has only one shell while alkali metals and halogens have two or more shells.
2. The oxide of hydrogen H2O is a neutral oxide. Oxides of halogens like Cl2O, Cl2O7 etc. are acidic in nature while the oxides of Na2O, K2O etc. are basic in nature.
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