Question

Why hydrogen has a unique position in the periodic table?

Answer 1

Answer:

it is because hydrogen can loose it's one electron and form proton or show metal behaviour and also cannot receive electron to show non metallic character as it can show both the property so it is difficult to decide it's position in early periods in modern periodic table it occupies an unique position

Answer 2

Answer: Hydrogen has a unique position in periodic table because

1) It can form cation by losing its one electron like the metals of the alkali metal group . Here it shows the properties of a metal .

2) It also forms anion by gaining one elctron and showing properties like the non metals .

Therefore , there was a confusion about about the positioning of hydrogen in the periodic table . But since hydrogen has atomic no. 1 . That is why it is placed in the first group . Due to these things , hydrogen has got a unique position in the periodic table .

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