🌍 where
Where was the periodic table first published in its recognizably modern form?
ChemistryPeriodic Table
Quick Answer
Dmitri Mendeleev first published it in St. Petersburg, Russia, in 1869. His version arranged the elements so their properties repeated periodically.
The Full Story
Dmitri Mendeleev first presented his periodic table in 1869 while working in St. Petersburg, then part of the Russian Empire. He organized the known elements by atomic weight and recurring chemical properties, and he famously left gaps for elements not yet discovered. His work was published in Russian and quickly became a cornerstone of modern chemistry. Later discoveries such as gallium, scandium, and germanium strongly confirmed his predictions.
Key Facts
1.First published in 1869
2.Created by Dmitri Mendeleev
3.Published in St. Petersburg
YouTube Angle
Suggested video title for this topic:
"How one table in 1869 predicted elements nobody had found yet"