Historic development of the atom and its implications

The atom has been suggested as the smallest complete part of matter since the cartridge holder of the ancient Greek philosophers only if they did not have a clear picture of the nature of the atom or any possible structure because of limitations to their scientific knowledge. Dalton was a scientist who suggested in 1810 that the important feature of atoms is that an element is a pure substance because it contains analogous atoms. This was the first time that atoms were regarded as identifiably unique because Dalton withal proposed that atoms of different substances were different to each other, particularly because they had different nuclear mass.

        

Daltons theory lead him to alike suggest that compounds consisted of different elements whose atoms had been combine together and he therefore also put away the idea that different compounds remained consistent in the ratio of the elements involved. Dalton also suggested that chemical equations occurred when combination of atoms were rearranged. Daltons sham is shown below

The problem with Daltons prototype is that it regarded atoms as units without structure and it needed further research to show that his illustration was defective. Thomson in 1904 put forward a model, which suggested that there were sub-atomic particles.



Thomson suggested the atom

consists of a positively charged fluid in which negative electrons ar embedded in the same way that fruit git be found throughout the ball of a pudding.

For this reason, Thomsons model is sometimes referred to as the plum pudding model. This model was incorrect in the way that he imagined that an atom was structured but the important contribution was recognising that there were negatively charged particles much(prenominal) as electrons, which were balanced against positively charged material.

Thomsons model is illustrated below

This model was supported by Thomsons experiment using a cathode...

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