Download Note Skeleton: Atomic Theory and Atom Structure

U9 Matter
What is Matter made of?
______________________
Aristotle
(BCE)

Democritus
(BCE)

tiny __________________________ particles
 ___________ = “uncuttable”
 not accepted for __________!

combination of ________________
 search for “__________________”
 wanted to change ________________

atomic theory
 tiny elastic ______________________
 combine to form ________________

electron
 __________________ model
 __________ throughout __________
Rutherford
(1910)

proton
 _______________ experiment
 mostly _________________
 _________________________
Bohr
(1922)

electrons travel in __________________ and not
between
deBroglie
(1923)

electrons ______________________________
Heisenberg
(1927)

_____________________
 can’t know _________________________________
Schrodinger
(1930)

electron ____________________
Alchemy
Dalton
(1808)
Thompson
(1904)
Chadwick
(1932)

________________________
Gell-Mann

quarks: tiny particles that __________________________
 flavors: __________________________________________
Matter

anything that ______________________________.
Atom

_____________________ that has all the properties of __________.
Location
Sub-atomic
particles
Structure
Charge
Mass
proton
neutron
electron



Standard Atomic 
Notation

________________________________!
Nucleus: __________________
 _________________ (~0.001% of atom’s ___________)
 _______________ (most of atom’s _________)
analogy:
 nucleus = _______________ of hockey rink
 whole atom = ________________________
atomic number = ___________________________
 in neutral atom: __________________________
atomic mass (amu) = _______________________
Element Info on
PT
Changing #
subatomic
particles


___________
atomic number: _________________

chemical ________

mass: __________________

Δ # protons  ____________________
 C has ____
 add 1 proton  ____________

Δ # electrons  ______________________
 neutral Na has __________
 loses 1e- _____________

Δ # neutrons  ________________________
 12C has ________________
 add 1 n0  ______
https://www.ted.com/talks/just_how_small_is_an_atom
https://www.youtube.com/watch?v=xazQRcSCRaY
https://www.youtube.com/watch?v=QbWKF9uDF7w
https://www.youtube.com/watch?v=IO9WS_HNmyg