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he isolated arsenic the new element in 1250.
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he made laws for the chemistry of science a rule never to break. Most of the research he done was finding information about gas and how it works.
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he discovered some chemical gases, he just discovered unknown metals.
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he was a natural philosopher and he discovered hydrogen what he called “inflammable air”
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he discovered sulphur and was a French nobleman.
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his theory was that atoms were made up of all things, discovered the experimentation with atoms and atomic numbers.
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he was known for the two laws of science related to gases and alcohol-water.
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this man discovered the periodic table which is now the most used theory in the world, studied for a long time to invent a solution.
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he discovered electrons and isotopes and the inventing the mas spectrometer.
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Marie curie discovered radio activity in the metals radium and polonium.
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he explained what happens inside an atom and thus developed a picture of atomic structure.
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he discovered the neutron. He also worked on the Manhattan Project (the development of the atomic bomb) during world war Two.
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he proposed that the atom is made up of a positive centre is surrounded by a number of negatively charged electrons.
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discoveries in chemistry
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he discovered acids such as hydrochloric and nitric acids, distillation and crystallization