Question

What did Dmitri Mendeleev do that set him apart?

answer choices
Created a list of all known elements
Arranged all the known elements together based on their properties
Made accurate predictions about undiscovered elements based on where they would live in the periodic table
Accidentally discovered Plutonium

Answer 1

Dmitri Mendeleev is most known for arranging all the known elements together based on their properties, creating what we now know as the periodic table. This arrangement helped to accurately predict the properties of yet-to-be-discovered elements and place them in their appropriate spots in the periodic table. His predictions about undiscovered elements proved accurate, and ultimately revolutionized the field of chemistry.