Atom, elements, and compounds Flashcards
according to this theory, matter is made up of extremely small and indestructible particles called atoms
Dalton’s Atomic Theory
3 men who composed atomic theory
Democritus, Aristotle, Dalton
Joseph Louis Proust Theory
Law of definite proportion, law of multiple proportions, and law of conservation of mass
same elements are given the same mass proportions
law of definite proportion
2 elements combine and form more than one compound
law of multiple proportions
matter and energy can neither be created nor destroyed
law of conservation of mass
building blocks which make up substances. smallest unit of an element that can enter into a chemical reaction
atoms
atomos
democritus
billiard ball model
dalton
raisin bread model/electron
thomson
gold foil expt/proton in the nucleus
rutherford
neutron
james chadwick
planetary model
bohr
quantum mechanic model/3d model
schrodinger
greek word for atom meaning indivisible
atomos