Atom Flashcards
created the atomic theory
John Dalton
basic unit of matter
atom
just a ball
ball bearing model
ball bearing model
john dalton
electrons float on a soup of positive charges
plum pudding or raisin bun model
plum pudding or raisin bun model
j j thomson
an atom is composed of a dense nucleus consisting of a proton and a neuron, where almost all the mass of the atom is concentrated
rutherford’s atomic model
rutherford’s atomic model
ernest rutherford
electrons orbit the nucleus like the planets orbit the sun
planetary model of the atom
planetary model of the atom
niels bohr
an atom has a cloud-like region where electrons are likely to be found
electron cloud model
electron cloud model
erwin schrodinger
negative
electron
positive
proton
either positive or negative
neutron