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He thought that the atom is the smallest particle and could not go any further. He discovered this in 420 BC
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He proposed that an element should be defined as a substance that cannot be broken down into any simpler substances. He proposed this in 1768
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According to this law developed by Joseph Proust in 1799, substances always combine in the same proportions.
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He discovered that all matter must be made of seperate particles
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Discovered the bunsen burner and found out that each element had its on unique colour band. he discovered this in 1860
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The father of the periodic table because he was known for devising the table that had 62 known elements at the time in order.he discorvered this in 1869
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Was the creator of the plum pudding model. JJ was very important because he found out that atoms consisted of negative charges.
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Ernest wanted to find out what was inside the atom, he did this by making the Ruthford model in 1911 and it showed that some atoms would pass a gold sheet and some would deflect.
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Discovered the neutrons and that neutrons have no charge and weigh the same as protons.