Early Atomic Theory
Periodic Table
Significant Figures
Quantum Numbers
Waves
100
-All Matter is made of individual, indestructible, atoms -All atoms of a given element are identical in their properties -Compounds are formed by two or more atoms -A chemical reaction is a rearrangement of atoms
What is John Dalton's atomic theory?
100
Atomic Number
How are the elements in the periodic table organized?
100
Non-Zero digits
What is Always significant?
100
The letter n
What denotes the principle quantum numbers?
100
The number of times a wave passes through a fixed point in a given time period
What is Frequency?
200
Discovered the charge of an electron with his oil drop experiment
Who is Robert Millikan?
200
Protons + Neutrons =_____
What is the formula for mass of an element?
200
Numbers that are only significant after the decimal
What are trailing zeros?
200
The orbital with 7 possible orientations
What is the F orbital?
200
The distance between crest
What is Wavelength?
300
Proposed the plum pudding model of an atom stating that the atom was composed of a cloud of positive charge with negative electrons scattered throughout
Who is J.J. Thomson?
300
s,p,d,f
What are the 4 blocks?
300
Where we look to determine significant figures in addition and subtraction problems
What is the right of the decimal?
300
Specifies the orientation of the spin axis of an electron and can have a value of +1/2 or -1/2
What is the Spin Quantum Number?
300
λ=(c/v)
What is the equation for wavelength?
400
Experiment by Rutherford that disproved the plum pudding model
What is the gold foil experiment?
400
Increases as you move up and to the right along the periodic table
What is electron affinity?
400
The least number of significant figures in the problem
What determines the number of significant figures in multiplication and division problems?
400
Angular momentum quantum number that specifies shape
What is L?
400
Electrons are ejected from a metal as a result of light being shined on the metal
What is the photoelectric effect?
500
Streams of negatively charged electrons emitted from a vacuum tube
What are cathode rays?
500
The element with the biggest atomic radius
What is Cesium?
500
Record your answer to 3 significant figures
What is the rule of thumb when significant figures are unclear?
500
No more than two electrons can occupy the same orbital, and electrons in the same orbital have opposite spin
What is the Pauli Exclusion Principle?
500
Phenom that occurs when a wave encounters an obstacle or a slit
What is Diffraction?
M
e
n
u