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Found the atom all atoms are indivisible atom deride from atoms atomos is Greek for indivisible.
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A Person involved with alchemy which is the beginning type of science where modern chemistry was believed to come from.
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Sensitive Apparatus to measure the electrical forces involved in Priestley's law.
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He became the father of modern chemistry. He invented the system of chemical nomenclatur,e still largely in use today.
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He proposed the atomic theory with spherical solid masses in motion. atoms can't be made or destroyed.
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Studdied the effect of electricity on solutions developed laws of electrolysis.
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Arranged elements into 7 groupswith similar properties. He discovered that the properties of elements "were periodic function of their atomic weights." This became known as the periodic law.
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Constructed a primitive cathode ray tube, which later became basis for tv.
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Chielfly associated with his discoveries of x-rays. The first x-ray picture he made of his wifes hand is called "Rontgenogram."
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Studdied the effects of x-rays on photographic philm. He discovered some chemicals spontaneously decompose and give off penetrating rays.
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He described atoms as a ball as positive charge containing a number of electrons, discovered the electrons.
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Radio active particles cause atoms to break down, releasing radiation that takes the form of energy and subatomic particles. Coined the term radioactivity.
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He developed the Quantum theory.
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Creates special and general theorys of relativity, and hypothesizes about the nature of light. This was basis of nuclear energy.
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worked on an oil drop experiment which was used to measure the charge on an electron. We are able to measure the charge of a single electron because of his experiment.
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Neobel prize in 1922- designed the Bohr planetary model- picture of atomic structure. Proposesd that the atom is "succesive orbital shells of electrons."
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discovered that the number of protons in an element determines its atomic number
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Discovered that electrons had a dual nature similar to both particles and waves.
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Quantum mechanical model where electrons are in probability zones called orbitas.
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He is the father of nuclear physics. He determined that the nucleus of an atom is very dense and has a positive charge.
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He proposed the "Electron cloud theory." He identified the electron cloud as the propable location of mobing particle.
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He proved the existance of newtron. He discovered a particle within the nucleus that has a mass similar to that of a proton.
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thought of as the father of nuclear chemistry, discovers nuclear fission.
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discovered nuclear fission with Otto Hahn
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Descovered 8 transuranium elements.
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He conducted the first chain reaction releasing energy from the atoms nucleus.
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proposes the quark model which describes elementary particles that have no substurctue.
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Won the Nobel peace prize for the discoveries concerning the classification of elementary particles and their interactions. He is still alive today.