20 Jan 1789 Jahr - Antoine Lavoisier: He discovered four elements which were hydrogen, oxygen, carbon and silicon. Moreover, he formed the law of conservation of mass which states that in a chemical change, no atoms are created nor destroyed along with the establishment of chemical nomenclature which is a naming system for chemical compounds. Additionally, Lavoisier contributed to the periodic table by being the first person to classify elements into metals and non-metals.
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20 Jan 1789 Jahr
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~ 236 years ago