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In 440 B.C., Democritus discovers atoms when he ponders the question; Could you keep cutting the pieces in half forever?
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Dalton comes up with three rules. All subsances are made of atoms, atoms of the same element are alike, atoms join with other atoms to make a new substance.
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British scientist named J.J. Thomson discovered small particles inside of the atom known as electrons.
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Ernest Rutherford, a student of Thomson, creates an expierement. He aimed a beam of postive particles at a gold sheet and fired. He discovered that there is empty space in atoms.
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Rutherford descovers the nucleus of an atom. He found out that the nucleus is also very small
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Niels Bohr discovered that electrons so not follow any specific pattern.
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These two German scientists discover electron clouds.
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Scientists like Einstein and othe Jewish scientists begin the MAnhattan project
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Dropped on Hiroshima, this was the first Atomic Powered bomb dropped during a military operation.
