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Democritus was a famous greek philosipher and scientist. He believed that all matter cis made up of extremely small particles. he called these things Atoms.
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Dalton had made a theory that atomas were just solid spheres in which they come to gether to build things. He tried thid by using wooden spheres and sticks, connecting them together.
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Mendeleyev had came up with the first design or drawing of the Periodical Table of Element.s
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Max was a German physicist. He is the founder of the Quantum Theory. The quantum theory focuses on the naturee of matter,(atoms.)
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Had came up with the theory that an atom has a nucleus. And the electrons move in orbit around the nucleus.
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Ernst had come to the conclusion that an atom has a dense positively chrged nucleus with the electrons floating randomly around the nucleus itself.
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Niel had worked with Rutherford for a while but discovered that the electrons in an atom move in spherical orbits around the nucleus.
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Erwin had developed mathematical equations that describes the motion of an atom. He recieved the Nobel Prize for his work. His work also leads to an electron cloud model.
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Ernest was a New Zeland Phycisist who did a "gold foil experiment." He had used this experiment to determine the derection of alpha particles.
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James had confirmed that an atom had electrons but they are not charged.
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Broglie was a French physicist. Broglie had said that moving particles in an atom like electrons Have some properties of waves.
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Thomson had discovered the electron in a series of experiments. such as: using
'plum-pudding" -
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Aristotle had believed thet everything is made of four things such as: fire, earth, water, and air. These were also called four elements.
