Question

no fixed position can be assigned to hydrogen in the periodic table. why?

Answer 1

because it shows similarity with the elements present in group 1 as well as in group 18.

Answer 2

The position of the hydrogen is unknown in the periodic table due to following reasons:

Explanation:

• The hydrogen has a valence of one electron in its outermost shell it can loose its electron like alkali earth metals.
• The hydrogen can also gain electron like halogens.  
• Typically like that of halogens the hydrogen can also form a diatom molecule and can combine with the metals and non-metals to form the covalent compounds.
• These properties makes the position of the hydrogen in the periodic table unknown and undetermined.

Learn more about hydrogen:

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