-
pictures atoms as tiny, indestructible particles, with no internal structure
-
british scientist, discovers the electron. later leads to his plum pudding model. he pictures electrons embedded in a sphere of positive electrical charge
-
Japanese physicist, suggests that an atom has a central nucleus. electrons move in orbits like the rings around Saturn.
-
finds that an atom has a small, dense, positively charged nucleus. electrons move around the nucleus
-
the electron moves in a circular orbit fixed distances from the nucleus
-
purposes that moving particles like electrons have some properties of waves
-
develops mathematical equations to describe the motion of electrons in atoms. his work leads to the electron cloud model
-
confirms the existence of neutrons, which have no charge. atomic nuclei contain neutrons and positively charged protons