Pioneer of actinide and fluoride chemistry and Manhattan Project worker

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Considered one of the fathers of modern analytical chemistry

Pioneer of valence theory known for Abegg's rule, a precursor to the octet rule

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Can you answer these questions about the periodic table of the elements?

Comparing the insecticidal activity of DDT and pyrethrins

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Daily highlights from the periodic table of the elements

The mole and three other metric units redefined and linked to the values of physical constants