Question

Why do you think scientists might have been frustrated by the organization of the elements before 1869?

Answer 1

And I need like 3 different reasons..

Answer 2

Do you mean organization of the elements in the periodic table?

Answer 3

At that time, scientists knew some of the properties of more than 60 elements. However, no one had organized the elements according to these properties; making it harder for scientists to understand how elements interact with each other.