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19-02-2021
Chemistry

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Why did Mendeleyev try to reorganize the periodic table?

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19-02-2021

Mendeleev’s chart allotted spaces for elements that were yet to be discovered. For some of these missing pieces, he predicted what their atomic masses and other chemical properties would be.

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PLEASE SHOW YOUR WORK!!! (solve system of equations by adding, subtracting, or multiplying.)

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