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A greek philosopher and scientist. Believed that everything was a combination of the four elements earth, fire,water,air. This theory was incomprehensible size everywhere called hyle
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First person to suggest that materials were made up of smaller things. As he called them atomos. That everything is its own type of atomos as it doesn't matter what size it is
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Found the first natural science upon observation as to speculation
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He studied glass and he proposed that elements are composed of corpuscles of various types and sizes are able to organize themselves into groups that represent different chemical substances.
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He created the Law of Conservation
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Founded the Law of Definite Proportions.
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He found out that equal volume of gas at the same temperature and pressure have same number of molecules.
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He created the Law of combining volume of gas.
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Matter is composed of extremely small things.
Atoms are indivisible and indestructible.
Atoms of a given element are identical in size.
Atoms are of specific elements are different that those of other elements
In a chemical reaction atoms separate and combine or rearrange. -
Created the cathode ray.
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First person to discover evidence of radioactivity.
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He found that this came out to be true.
An alpha particle (α=He^+2) is positive
A Beta particle (β=e-) is negative
A neutral particle (ϒ) is light -
Discovered the energy quanta.
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Discovered the structure of a Atom.
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The measurement the elementary electric charge.
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The nature of electrons and found that all matter was properties.
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a key pioneer of quantum mechanics.
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Developed a number of fundamental.
