History has rightly pointed out that there have been a lot of scientists in the past that have made discoveries as well as inventions which has helped the world today. It should be noted however, that these discoveries did not just come by mere reasoning. Chemistry was employed and this meant long hours and hard work in the laboratory. Some of these scientists include –

1. Dmitri Mendeleev
2. John Dalton
3. Roald Hoffmann
4. Glenn T. Seaborg
5. Marie Curie
6. Robert Boyle
7. Fritz Haber
8. Linus Pauling
9. Amedeo Avogadro

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