Atomic Model of John Dalton

Atomic Model of John Dalton

1. Who was John Dalton?

   • In addition, throughout life, the chemist discovered visual impairment called color blindness, that is, when the person has difficulty in differentiating colors (Red and green). Above all, it was responsible for studies of gases and vapors behavior in different temperatures.
   • He was born in Cumbria - England, in 1766.
   • In addition to developing the first atomic model of history, in 1808, Dalton also carried out other important contributions to the scientific world. It was the chemist who introduced the concept of mass atomic, besides formulating the law of partial gas pressures. This law became known as Dalton's Law.

2. The idea of matter, that is, the atom, already was discussed in Ancient Greece, for philosophers like Democritus and Leucipo. However, scientific studies related to the atom were only realized with the atomic model of Dalton. How was the first model proposed in history, the constitution of atomic structure was not yet understood in its entirety.

   • With that, Dalton achieved some conclusions. The first of them is that atoms were massive, indivisible spheres indestructible. In addition, the chemist found that chemical elements were formed by sets of atoms with the same properties.
     • Since, atoms of different elements chemists had distinctive features. Soon, to differentiate atoms of the elements, the relative weight of each particle.
       • Conclusions of atomic theory by Dalton One of the first Dalton's conclusions was the understanding of the Law of Conservation, established by Lavoisier. According Lavoisier, the dough in a chemical reaction always conserves, because atoms do not are destroyed. For Dalton, the theory was proven, since the atom was indestructible.

Bilder und Dateien der Mindmap