Question

1. Among the scientists who were responsible for the development of the periodic

table are:

I. Dmitri Mendeleev II. Johann Dobereiner and III. John

Newlands.

Arrange their names according to the history of the development of the

periodic table.

a. I , II, III

c. III, I, II

b. II, III, I

d. III, II, I​

Answer 1

Answer:

option b is correct first attempt was done by Johnn doberiner then John newland and then Dmitri mendeleev