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believing atoms existed by the showing how elements combine to form compounds.
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he found out that all bodies are made up of small atoms. he found that atoms are different in size and shape and counld rebound from if they collided together.
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Matter was constructed out of atoms.
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If the volume of gas decreases the pressure increases. 'corpuscular theory'. this explains why gasses are made up of tiny particles.
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Total mass in products and reactants in chemical reaction the chemical reactions are all the same. The law of conservation mass.
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They came up with the foundation of periodic table. Fire, earth, wind, and water are they elements they broke down.
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All matter is comprised of tiny, definite particles called atoms.
Atoms are indivisible and indestructible.
All atoms of a particular element share identical properties, including weight.
Atoms of different elements contain different mass. -
he arranged all the elements to atomic weight. He found out that the properties repeated.
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all atoms contain tiny negatively charged subatomic particles or electrons. he discovered the electron.
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conducted a experiment of uranium rays. They discovered the radioactive elements which are polonium and radium.
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the energy of light is proportional to the frequency. the energy of each quantum is equal to the frequency of the radiation multiplied by a universal constant.
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Light has particle like activity. The electrons that are projected determine wave length.
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any liquid is made up of molecules. calculated that a force of a pollen is a grain floating in water.
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he discovered the charge of a electron. by the falling drop method
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the atom is a small positively charged nucleus with with negative charged electrons. A beam was aimed through a piece of gold foil and most of the particles passed through but some came backwards. this showed that the atom has many empty space.
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The theory of hydrogen atom. electrons move around the nucleus but in order the have a set size and order.
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self-built equipment to prove that every element's identity is uniquely determined by the number of protons it has.
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in 1926 Erwin Schrödinger formulated a wave equation that accurately calculated the energy levels of electrons in atoms.
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He discovered the uncertainty principle. This means that a particles position and momentum can not be known.
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He discovered the neutron. A neutron is a particle with no electric charge.