9th Class Chemistry || Chap 3 || Dobereiner Law of Triads || FSC HUB скачать в хорошем качестве

9th Class Chemistry || Chap 3 || Dobereiner Law of Triads || FSC HUB

In this video, we delve into the captivating history of the periodic table. We explore its origins in the 19th century, where scientists like Mendeleev and Meyer recognized patterns among the elements based on atomic weights. Mendeleev's groundbreaking periodic table, unveiled in 1869, organized the elements into groups and left room for undiscovered elements. We trace the table's evolution as new elements were discovered and learn about key milestones, including Marie Curie's discoveries and Henry Moseley's establishment of the atomic number. The video showcases the periodic table's transformation into a comprehensive tool used in various scientific disciplines. It highlights the impact it has had on human knowledge and technological advancements. Join us on this fascinating journey and gain a deeper appreciation for the world of chemistry and scientific discovery! #9thclasschemistry #9thclasschap3 #9thclass