After a fierce debate at the meeting, no unified opinion was obtained, so we had no choice but to publish a booklet called “Summary of Chemical Philosophy” at the end of the meeting. The meeting was held in Karlsruhe, Germany, from September 3 to 5, 1860, and 140 chemists, mainly from European countries, attended the meeting. In order to end this chaotic situation and unifyĮveryone’s understanding of element symbols, atomic weights, valences, andĬhemical formulas, Kaikoura et al. Who Discovered Molecular Theory?ĭalton and Avogadro founded the theory of molecular atoms, laying the foundation of modern chemistry.Įach chemist has its own set of element symbols and chemical formulas so that in the textbook written by the famous chemist Kaikoul, there are as many as 19 chemical formulas of acetic acid. This chaotic situation has led to many famous chemists to wonder whether the atomic weight can be measured and whether it exists. This is actually questioning atomism. How can such chaotic chemistry continue to move forward? That the molecular hypothesis was accepted by chemists in various countries and Until the International Conference on Chemistry that was first held in 1860 The atomic weight cannot be accurately determined,Īnd the molecular composition cannot be determined naturally. It was not Weight, the numerical value will inevitably produce a double deviation. Methods such as steam density method were used when measuring the atomic Since they were not recognized as diatomic molecules, physical Relatively standard oxygen or hydrogen for determining the atomic weight ofĮlements. Of atomic weight and encountered problems. After discovering the Modern Atomic Theory, we are laying the foundation of modern chemistry.Īt that time, chemists relied on the determination
MODERN ATOMIC MODEL FREE
In 1860, before nearly half a century, because of the non-recognition molecule is the smallest particle of elemental or compound in the presence of an independent free state, does not recognize molecules are made of atoms that correct hypothesis, the world of atoms and chemists the molecular understanding is very confusing.
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