HardChemistry
When was the modern periodic table introduced?
Riddle
When was the modern periodic table introduced?
Choose an answer
A.1776
B.1869
C.1950
D.1912
Hint: It's a word with 0 letters, starting with "1".
Answer
1912
Why this is the answer
While Mendeleev created the first in 1869, the version based on atomic numbers came in 1912.
This riddle is filed under Science Riddles and rated Hard.