Historical Development of an Atom Flashcards
Introduced the idea of atoms as the building block of matter
democritus
He thought that atoms were tiny, indivisible, solid particles that are surrounded by empty space and moving at random
democritus
Atom came from the greek word
atomos
what does atomos mean
uncuttable
The first to adapt Democritus’ theory into the first modern atomic model
John Dalton
In 1803, what did John Dalton propose?
The Daltons Atomic Model
He discovered Electrons
Joseph John Thomson
What is Thomsons model of neutral element
Plum Pudding
He proposed the nuclear model of atom
ernest rutherford
WHat experiment is rutherford known for?
Gold Foil Experiment
He theorized that electrons orbit around the nucleus - orbital path
niels bohr
What is bohrs model of atom
Solar System
Discovered nuetrons
James chadwick
He developed a model of atom that we still use to this day
Erwin Schrodinger
WHat is Schrodingers model
ELectron Cloud Model
