Atomic Theorists and Models of the Atom Quiz.

all matter is made of atoms

atoms are indivisible and indestructible

Atoms remained unchanged in a reaction, only their connections change

Different atoms may combine to form compounds in fixed proportions

electrons orbit the nucleus

dense positive core surrounded by electrons

negative corpuscles

electrons are in electron shells located outside the nucleus

JJ Thomson

Democritus and Dalton

Bohr