Dobereiner’s Triads and Newland’s Octaves | Classification of Elements | Don't Memorise

In this video, we will learn:
0:00 Classification of Elements - Dobereiner Triads
1:49 Classification of Elements - John Newland' s Octaves
4:13 Classification of Element - Mendeleev's Periodic Table

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[InfinityLearn_NEET]

#DidYouKnow: Some elements are named after famous scientists, planets, or mythological figures
Einsteinium is named after Albert Einstein, while germanium, americium, and gallium were named after the places in which they were discovered. Uranium was named shortly after the discovery of Uranus.

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[sarimzulfiqar]

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[chandukichachi-mkoe]

Hii, I have a question, in the modern periodic table, we see that Hydrogen is placed above Lithium in the periodic table and does not have any properties similar to those of Lithium. Despite this, why do we use Mendleev's modern periodic table. (Note that one of the drawbacks of Newlands' law of octaves was that the elements after calcium didn't exhibit similar properties with their eighth element. ) Why is hydrogen placed above lithium and why is the modern periodic table still used despite this. Someone please solve my doubt ❤❤ I have a chem test next week 😢

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[beneatinneet]

Good representation of their periodic table