Write four similarities and four dissimilarities of hydrogen with 1A group of elements
Answers
There are following similarities of hydrogen with alkali metals
1. Electronic Configuration: The electronic configuration of hydrogen is 1s
1
which is similar to the outmost electronic configuration of alkali metals (ns
1
). Som it is placed with alkali metals in group 1
2. Electropopsitive Character: Hydrogen can from unipositive ion by losing one electron like alkali metals.
e.g., H→H
+
+e
−
Na→Na
+
+e
−
3. Oxidation State: Hydrogen exhibits oxidation state of +1 ion the compounds of hydrogen which is similar to alkali metals.
4. Valency: Valency of hydrogen is 1 like alkali metals.
5. Reaction with Non-metals: Like alkali metals, hydrogen dorms binary compounds with non-metal,
6. Reducing nature: Hydrogen is a good reducing agent like alkali metals.
1 A group is also known alkali metal
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