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Lavoisier's and his wife
His wife helped him a lot with chemistry. also, she was translating for her husband. They spent their most free time at the laboratory. -
Davy
He had a laughing gas which made a lot try it. and when he tried it he found that his tooth pain was gone. So he said that it could be used in the surgeries. -
Mendeleev
He left spaces in the Periodic table and predicted some of the properties of these elements. After 4 years they found that Mendeleev prediction was correct. -
mercery and her husband
They discovered a new radion element. -
Harry moseley.
He was killed by the Turkish army by a shoot. His found was a revolution and he was nominated for the Nobel prize, and all that happens after 2 years of his death.