Question

Mendeleev could not assign a fixed position to hydrogen because

1 point

(a) hydrogen does not react with any other element

(b) hydrogen has completely filled shell

(c) hydrogen resemble alkali metals as well as halogens in properties

(d) hydrogen is highly reactive element​

Answer 1

Answer:

hydrogen has completely filled shell

Explanation:

Answer 2

It's C

Mendeleev couldn't assign a particular position to Hydrogen because it's chemical properties are similar to that of Alkali Metals as well as Halogens. Woh ek Gajab Element hai XD.

Hope this helps... Have a great day...