Question

Give two chemical similarities between hydrogen and alkaly

Answer 1

Position of an element in periodic table depends upon its electronic configuration and properties. Hydrogen resembles the elements of group I-A and VII-A in some respects. Properties of hydrogen do not completely match any one of the above-mentioned groups. That is why position of hydrogen is still undecided. In the coming lines we will discuss why hydrogen can not be placed in a particular group in the periodic table.

Resemblance of hydrogen with alkali metals (Group I-A)

1) Like alkali metals hydrogen has one electron in its valency shell.