On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table. He ...

Did our AI summary help? The standard price of silver weakened nearly 10 percent in the past 24 hours, ending its two-day rebound from its recent surge as selling pressure and volatility resurfaced in ...

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