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Position of Hydrogen on the basis of it's electronic configuration

Position of Hydrogen on the basis of it's electronic configuration

Grade:11

2 Answers

Student
13 Points
4 months ago
Hydrogen is placed along with the other members of group 1 on the basis of many factors. One such is the electronic configuration. We know hydrogen has only one electron and hence its electronic configuration is 1S 1. Also the general electronic configuration of alkali metals (group 1) is nS 1, for example general electronic configuration of Li is 1S 2   2S 1, Of Na is 1S 2  2S 2  2P 6  3S 1.
Therefore, on the basis of electronic configuration, we can place H in group 1.
Navneet jha
100 Points
3 months ago
Its electronic configuration is [1s¹]. Due to the presence of only one electron in its 1s shell, hydrogen exhibits a dual behaviour, i.e., it resembles both alkali metals and halogens. 
As a result it is placed at the top of the alkali metals in group 1 & also along the halogens in group 17 since just like halogens,it also requires any one electron to have the configuration of the nearest noble gas element.

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