Question

Why is the position of hydrogen is not fixed in modern periodic table justify?

Answer 1

Answer:

It is so because hydrogen has 1 valence electron in its outer most shell . so according to modern periodic table , hydrogen can be arranged in halogen famaly i.e . group no. hydrogen resembles like both the alkali metals and the halogens

Answer 2

Position of hydrogen is not justified as it shows similarities with alkali metals like Na, K etc in  having 1 electron in outermost shell and also it shows similarities with halogen  in terms of  electronegativity. So it position could not be justified