Mendeleev is given the most credit for the concept of a periodic table of the elements because:
A)He had the longest history of research in elemental properties.
B)He emphasized its usefulness in predicting the existence and properties of unknown elements.
C)His representation of the table was the most understandable.
D)His periodic table was arranged in octaves.
E)He grouped elements into triads of similar properties.

Question

Quizplus · Accepted Answer

Mendeleev's emphasis on the usefulness of the periodic table in predicting the existence and properties of unknown elements is considered one of his major contributions to the development of the periodic table. His predictions of unknown elements such as germanium and gallium based on gaps in his table were later found to be accurate.

Mendeleev Is Given the Most Credit for the Concept of a Periodic