24 ottob 1743 anni - Antoine Lavoisier defined an element as a substance that cannot be broken down into a simpler substance, by a chemical reactioin. Lavoisier started to classify the elements: oxygen, nitrogen, hydrogen, phosphorous, mercury, zinc and sulphur, into the groups of metals and non-metals.
Aggiunto al nastro di tempo:
Data:
24 ottob 1743 anni
Adesso
~ 281 years ago