What are the benefits of mendeleev's periodic table?

Well, Mendeleev's Period Table is truly a genius discovery. Some say that he thought of it during his sleep.

It's also sometimes called a Periodic Table. Periodic Table helps to organize all of the elements based on their properties, and much more. It also includes a lot of important stuff, such as atomic masses.

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Hydrogen is the most abundant element on the periodic table..hope it .

Exothermic,  physical change after it is already baked