Perhaps the greatest triumph of Mendeleev's periodic table was
A)the use of rows and columns to organize the elements.
B)the ability to predict electron configurations of elements.
C)the use of atomic numbers as an organizing criterion.
D)the prediction of the existence of undiscovered elements.

Question

Quizplus · Accepted Answer

Mendeleev's periodic table successfully predicted the existence and properties of undiscovered elements that were later discovered, such as gallium and germanium. This was a significant triumph as it demonstrated the power of the organization of the elements in the periodic table.

Perhaps the Greatest Triumph of Mendeleev's Periodic Table Was