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Atoms are indestructible. Atoms are solid but invisible.Atoms are homogenous.Atoms differ in size, shape, mass, position, and arrangement.
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Thought the world was made up for main elements Earth, Fire, Water, Air
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Florence becomes the center for renessance art and learning
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America is ofically a country
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Proposed that all matter is composed of very small things which he called atoms. When Dalton proposed his model electrons and the nucleus were unknown.
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Abraham lincon is born
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a military conflict, lasting for two-and-a-half years, between the United States of America and the United Kingdom of Great Britain
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Abraham lincon is assinated
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Determined that all matter is made up of tiny particles that are much smaller than atoms. He originally called these particles 'corpuscles,' although they are now called electrons. This discovery upended the prevailing theory that the atom was the smallest fundamental unit.
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Australia Becomes a Commonwealth
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Overturned Thomson's model he demonstrated that the atom has a tiny, nucleus.
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On October 10th, a revolution broke out against the Manchu government. The government was in such disarray and central power was so limited
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Niels Bohr proposed a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities.
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He believed that electrons can act like both particles and waves, just like light. He also said that waves produced by electrons contained in the orbit around the nucleus
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Discovered the nuetron and he found that electrically charged plates and magnets deflected a cathode ray
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Nelson Mandela became the first black president of South Africa
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First modern Credit card introduced