Why the position of hydrogen was not fixed in Mendeleev's periodic table  .

Asked by pdcavita | 29th Nov, 2017, 10:21: PM

Expert Answer:

 Hydrogen was not given a fixed position.

It was considered in Group IA as well as in Group VIIA, because it forms a positive ion as in HCl and a negative ion as in NaH.

Answered by Varsha | 30th Nov, 2017, 10:34: AM