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Atomos- that which cannot be cut
definition of an atom- the smallest unit of matter which still retains the identity and properties of that matter -
Greek philosophers became interested in Egyptian religion. Greeks combined the theory of the four elements and religion
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Only believed in four elements: earth,fire,water and air
Because Aristotle refuted Democritus he caused 2000 years of bogus science. -
Means "burning up"
Founded by Johann Joachim Becher
Carbon Dioxide that was no longer burning is called "dephlogisticated air" -
Discovered electrical charges come in 2 varieties- positive and negative
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Father of modern chemistry
Discovered oxygen causes combustion
Discovered the law of conservstion of mass
Also discovered that matter cannot be destroyed or created in a chemical reaction -
Dalton's Atomic theory of matter
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Conducted the paddle wheel experiment.
Placed the wheel in CRT and sent a charge through the wheel, it started spinning. -
Conducted the CRT experiment
CRT- a glass tube that contains no air and coated in fluorescent paint and when a charge is sent through the paint, it glows, indicating radiation -
Discovered the classification of radiation
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Discovered radiation
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Isolated polonium and radium from Uranium ores
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Calculated the charge and mass of an electron
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Discovered neutrons
