Chem Test 1
Model: small, solid sphere
Plum Pudding Model
positive core with embedded electrons
Gold Foil Experiment/Proton
Model: Positive nucleus with electron cloud
Model: contains all 3 subatomic particles
electrons have specific path around nucleus
Model: nucleus and electron orbitals
Mid 1950s Model of the Atom
Electron Could Model
electrons outside the nucleus, move in area(cloud), hard to pinpoint exact location
Model: fuzzy with boundary
Atomic size ___________from top to bottom.
increases, because you're adding an additional energy level
Atomic size _________from left to right.
decreases, because when you add another proton it increases the positive pull on the outer electron pulling it closer to the nucleus
Ionization Energy__________from top to bottom.
decreases, because the outer electron is father away from the nucleus so it has less of a pull
Ionization Energy_________from left to right.
increases, because there is a greater positive charge in the nucleus, so it has a tighter hold on the electrons.
observable with naked eye