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when did dalton perform his experiments?
1800s
whose theory did dalton base his off of?
democritus theory
dalton is also known as the
father of modern atomic theory
what are the parts of dalton’s theory?
all matter is tiny atoms. all atoms of an element are the same. atoms cannot be created, destroyed, or divided. atoms combine to form compounds. atoms of 1 element cannot change into another.
what were the problems with dalton’s theory?
atoms of an element aren’t identical, atoms can be divided
what was his model called?
billiard ball model
how did he view the atom?
small solid sphere