Which scientist is credited with creating the periodic table of elements?
Answer
Dmitri Mendeleev
Mendeleev published his table in 1869. Its real brilliance was the gaps: he left spaces for elements not yet discovered and predicted their properties. When gallium and germanium were later found and matched his predictions, the table's authority was settled.
How it appears in the quiz
✓Dmitri Mendeleev
Marie Curie
John Dalton
Antoine Lavoisier