Atomic Structure and History of Atomic Models review

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

My Gold Foil Experiment PROVED that positive particles existed in a NUCLEUS or center of the atom.

I discovered the Neutron in 1930's. Don't let my scary eyes fool you! I also learned that the mass of a neutron is almost the same as a proton.

EACH ROW ON THE PERIODIC TABLE IS CALLED A

I am NEGATIVE; I exist in the cloud around the nucleus; I am so tiny my mass is not counted.

What 3 ALWAYS have the same #?

Each column on the periodic table is called a ____

An element has 80 protons and 121 Neutrons. What is its atomic #?

You use ME to identify an ELEMENT. I am equal to the # of protons in the nucelus.