Chemistry, asked by kumarravi66818, 19 days ago

study of the first element hydrogen story

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Answered by ishitareddy69

1

Answer:

Hydrogen is the first element in the periodic table. Its atomic number is 1, and it has only one electron in its valence shell. So, it belongs to the first group and the first period of the periodic table. ... Hydrogen shows dual nature because it resembles the alkali metals of Group IA and the halogens of Group VIIA.

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