19.1 Atomic Theory

Match it! Select the correct answer from the pull down...Good luck!

How many protons does Gold have

Method used when one cannot see or touch something

Two atoms of the same element with a different number of neutrons

Used gold foil in his experiment

How many neutrons does gold have

Ran electric current through gases

Used when something is too small or too large

Unit used to measure the mass of subatomic particles