Question

Mendeleev organized the elements

a. alphabetically by name.
b. by the number of electrons.
c. by increasing the atomic number and similar properties.
d. by increasing atomic weight and similar properties.

Answer 1

D

Step-by-step explanation:

Mendeleev was a Russian scientist. His works provided the framework for the present day periodic table. What Mendeleev did was to arrange the elements in order of their atomic weights.

He however had some gaps in his periodic table. He impressively predicted the elements that would fill in these blank spaces even though they were yet to be discovered as at then.