ICP dead guys quiz

calcium

titanium

zinc

mercury

neon

sodium

potassium

iron

copper

silver

tin

antimony

lead

tungsten

• cathode ray experiment that led to plum pudding model

• discovered the electron

light indicated that there were negative particles

• gold foil experiment

• discovered the nucleus

proved most of the atom is empty space with a small, dense, positive center “nucleus”

• said atoms are tiny, solid, indestructible spheres

• said atoms of the same element are exactly alike

• oil drop experiment

• found the charge and mass of a single e-

calculated the charge on each electron and the mass of each electron

• discovered electrons are in discrete energy levels

• said electrons orbit the nucleus

discovered neutrons

• put periotic table in order of increasing atomic number

said that the location of an electron can only be described in terms of probabilities of where it might be located