Question

Justify the position of hydrogen in periodic table on the basis of its electronic configuration

Answer 1

Answer:

The position of hydrogen is anomalous till date. Because it has only 1 electron in the outermost orbit which compels us to put it in 1st group of alkali elements. But simultaneously it has one less electron in valence shell similar to halogens of group 17. So we can also put it in group 17. As per reports since hydrogen is the lightest element therefore it is to be placed in group 1.

hope it helps u

Answer 2

Answer :

Hydrogen has been placed at the top of the alkali metal in group, but it is not a member of the group.

Its position is not justified properly because of its electronic configuration as (1s1). It can be placed with alkali metals because it also has similar configuration (ns1) as alkali metals.

However, it can also be placed along with halogen in group 17 since just like halogen it can acquire inert gas configuration by accepting one electron.

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