Atomic History

2000 years ago 

Time Period of Democritus?

Athens, Greece

Place of Democritus?

Philosopher

what was Democritus?

2000 years ago

Time period of Aristotle

Greece

Place of Aristotle

division of particles 

What was Democritus’ development of the atom?

Aristotle.

who believed the world was made up of elements?

heated various substances and discovered “good air”

What was Priestly’s experiment?

1700s

Priestly’s time period.

Conversation of Mass.

Lavoisier created what law?

Lavoisier

who is the father of Chem?

they’re is no loss of mass

what did Lavoisier discover?

John Dalton

who created the atomic theory?

A simple sphere.

what was Jhon Dalton’s model look like?

1900s

JJ Thomson time period

Cathode Ray Tube

what experiment had negative particles (electrons) that was conducted by Thomson.

Ernest Rutherford

who discovered protons and nucleus.

Ernest Rutherf

who discovered most the atom is made of empty space

Nuclear Model.

what model did Rutherford create?

electrons can only exist in certain states. 

What did Bohr discover?

Planetery Model 

what model did Bohr invent?

electron cloud model

Schrodinger model?

Schrodinger

who discovered electron are particles and waves @ the same time?

James Chadwick

who discovered neutrons?

electron cloud model

what was James’ chadwick model?