Question

Why is Hydrogen placed above the periodic table ?​

Answer 1

Answer:

Hydrogen is a nonmetal and is placed above group in the periodic table because it has ns1 electron configuration like the alkali metals. However, it varies greatly from the alkali metals as it forms cations (H+) more reluctantly than the other alkali metals. ... Hydrogen also forms H2 dihydrogen like halogens.

Answer 2

Answer:

Hydrogen is a nonmetal and is placed above group in the periodic table because it has ns1 electron configuration like the alkali metals. However, it varies greatly from the alkali metals as it forms cations (H+) more reluctantly than the other alkali metals.15-Aug-2020

Atomic Number: 1

Atomic Weight: 1.0079

Electronic Configuration: 1s