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300 BC
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Suggests that all things are made of particles (atoms) [ 400 BC ]
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a 17th century natural philosopher, chemist, physicist, and inventor, also noted for his writings in theology.
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The theory was an attempt to explain processes of burning such as combustion and the rusting of metals, which are now collectively known as oxidation.
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Priestly
an 18th-century English theologian, Dissenting clergyman, natural philosopher, chemist, educator, and political theorist who published over 150 works. He is usually credited with the discovery of oxygen -
French chemist who, through a conscious revolution, became the father of modern chemistry.
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John Daltonan English chemist, meteorologist and physicist. He is best known for his pioneering work in the development of modern atomic theory, and his research into colour blindness
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Demonstrated the wave nature of light and the principle of interference.
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Atoms of the same element are all alike. They combine to make compounds.
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Avogadro
is defined as the ratio of the number of constituent particles N (usually atoms or molecules) in a sample to the amount of substance n (unit mole) through the relationship NA = N/n. -
Observed that a current in a wire can deflect a compass needle - provided first concrete evidence of the connection between electricity and magnetism.
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Invented the electromagnet.
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Analyzed heat engines.
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Stated law of electrical resistance.
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Discovered Brownian motion.
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Rutherford
a New Zealand-British chemist and physicist who became known as the father of nuclear physics. -
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Chadwick an English Nobel laureate in physics awarded for his discovery of the neutron.
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Pitchblende is a radioactive mineral made up of the mineral uraniumite; one of the main mineral ores of uranium.
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Invented the cyclotron in which first synthetic elements were created. Nobel Prize 1939.
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Developed radiocarbn dating technique based on carbon-14. Nobel Prize 1960.
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Bucky Ball
a spherical fullerene molecule with the formula C60.