Thomson Atomic Model = Protons and Electrons Model Analogy = Chocolate Chip Cookie (1 jan 1897 ano – 31 dez 1897 ano)

Descrição:

In 1897, the English scientist named J.J. Thomson provided the first hint that an atom is made of even smaller particles. He discovered the presence of a negative particle in the atom - the electron. He proposed a model of the atom that is sometimes called the "plum pudding" model. His theory was that atoms are made from a positively-charged substance with negatively-charged electrons scattered about, like raisins in a pudding or chocolate chips in a cookie.

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