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He believed that all matter consisted of extremely small particles that could not be divided. He thought that there were diffeerent types of atoms with different sets of properties. 460 B.C.E.
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Proposed a mechanical universe with small solid masses in motion.
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John gathered evidence for the existence of atoms. He measured the masses of elements that combine when combines form.
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Using a CRT he observed that nearby chemicals glowed. Further experiments found very penetrating rays coming from the CRT that were not deflected by a magnetic field. He named them "X-rays".
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He believed that if materials were were rubbed together they would attract or repel each other. He made a glass tube with metal disks on each end and a wire connecting them. he concluded that one disk had a positive charge and one disk had a negative charge.
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Nagaoka developed an early, incorrect "planetary model" of the atom. The model was based around an analogy to the explanation of the stability of the Saturn rings
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discoevered that uranimum emitss fasstmoving particles that have a positive charge. he did an expirement finding an uxpeccted discovery.
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developed mathematical equations to describe the motion of electrons in atoms. his work lead to the electron cloud model.
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Proposes that moving particles like electrons have some properties of waves. Within a few years, evidence is collected to support this idea.
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He made an atommade that was based on electrons. He did an expirement finding an unexpected discovery.
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He conducted the famous Geiger-Marsden experiment called the gold foil experiment in 1909 together with Hans Geiger under Rutherford's supervision.
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He did not beliee there was a limit to the number of times matter could b e divided. He has a modle that shows his belief. 384 B.C.E.
