-
427
Plato
Born 427 Bc
Created theory of form
died 347 bc -
440
Leucippus
Born 440 bc
Created the atomic theory that stated that matter can keep being divided until a certain point. called it an atom because it means not visible -
460
Democritus
Born 460 Bc
Believed god was in everything
Died 307 Bc -
Oct 12, 1492
Columbus lands in America
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James Dalton born
In England -
Dalton creates atomic theory
Dalton’s Atomic Theory:1) All matter is made of atoms. Atoms are indivisible and indestructible.2) All atoms of a given element are identical in mass and properties3) Compounds are formed by a combination of two or more different kinds of atoms.4) A chemical reaction is a rearrangement of atoms -
John Dalton Law of multiple porportions
The Law of Multiple Proportions states that if two elements form 2 compounds, the mass ratio of the elements in one compound is related to the mass ratio in the other by a small whole number. -
Dalton's law of definite composition
The law of definite composition states: A pure compound always contains the same elements in the same proportions by mass. -
John Dalton Dies
dies of a stroke -
J.J. Thomson born
In England -
Max Planck Born
In Germany -
American civil war breaks out.
-
Hantaro Nagaoka Born
-
Lord Ernest Rutherford born
Born in new zealand -
Erwin Schrodinger Born
in Vienna -
James chadwick born
In england -
Louis de Brogile born
In france -
J.J. Thomson discovers electrons and isotopes
-
Werner Heisenberg Born
In Germany -
Lord Ernest Rutherford discovers plum pudding model
-
Lord Ernest Rutherford discovers that atom has a nucleus
1908 nobel prize -
The Unsinkable Titanic sinks in the atlantic
-
Hantaro Nagaoka makes the saturnian model of the atom
-
World War 1 breaks out
-
Max Planck- founder of quantum mechanics
1918 nobel prize -
Louis de brogile wave particle duality of nature
light is both a wave and a particle
nobel prize in 1929 -
Werner Heisenbeg discovers uncertanty principle
It is impossible to know the velocity and position of an electron at the same time. -
James chadwick discovers neutron
nobel prize in 1935 -
Erwin Schrodinger's Cat
Placed his cat in a box with a small amount of radiactive material and a vial of poison. if any radioactivity leaked, the cat would die from the poison vial breaking -
Lord Ernest Rutherford Dies
-
Erwin Schrodinger discoveres quantum numbers
-
J.J. Thomson dies
-
Japan bombs Pearl harbor
America is forced into world war 2 -
Max Planck dies
-
Hantaro Nagaoka dies
-
Erwin Schrodinger Dies
-
James Chadwick dies
-
Werner Heisenberg dies
-
Louis de Brogile Dies
-
Ty (me) is born
-
Terrorists crash airplanes into the twin towers
It killed over 2,000 americans -
Ty creates this timeline for a chemistry final
-
Empedocles
Born 490 BC
Found the main elements of fire water air and earth
Commited suicide by jumping in a volcano -
Aristotle
born in 384 bc
taught Alexander the great
died 322 Bc