Electrons and shells
Protons and neutrons
Orbits and protons
The atomic weight
The atomic number
The Peroidic family
About 111, but I have not checked Google today to see if a new one was found.
More than 100 but after that I am a little lost
Less than 100
A whole bunch but I am not sure how many, can I go look at the chart?
A full ring
A full octet
A stable octet
A chubby atom
Give up electrons to become stable
Gain or take electrons from another element to become stable
An Emu ... energy mass unit
An Amu ... atomic mass unit
Dalton's atom model, the gold foil and then plumpudding
Plum pudding, gold foil and then Dalton's model
Dalton's atom, Thompson's plum pudding and then Rutherford's gold foil
Moe, larry, curly
Here's an interesting quiz for you.