Question

Why position of hydrogen is at the top of the periodic table?

Answer 1

it is placed on top bcoz it has ns^1electron configuration like the alkali metals.

hope this helps you:)

Answer 2

Hydrogen 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.

Atomic Number: 1

Atomic Weight: 1.0079

At Room Temperature: Colorless & Odorless Diatomic Gas

Electronic Configuration: 1s