Phunky Photoelectric Effect
What is true?
What are the l values associated with the s, p, d, and f orbitals?
0, 1, 2 ,3
Schroedinger's?
Hamiltonian x wavefunction = eigenvalue x wavefunction
Which is higher in energy: blue or red light?
Blue
As energy increases, what happens to wavelength?
What two values can be multiplied together to represent a photon?
hf (where f is frequency)
How many nodes does a ground state hydrogen atom have?
1
Equation for the wavelength required eject an electron from a material with a specific wavefunction, I
hc / I = lambda
What does paramagnetic mean?
Unpaired e- (dielectric means no unpaired e-)
What do psi, psi^2, and psi^2*r^2 stand for?
Wavefunction, probability density, probability
Emission: colored lines on a black background
Absorption: black lines on a colored background
What are the possible values of m sub l?
1/2, -1/2
What is de Broglie's equation?
wavelength of matter = h/(mv)
What experiment proves that light is both a particle and a wave? Why?
Double slit experiment - constructive and destructive interference, and differences between sending one photon at a time v. a bunch of photons
Where are planar nodes always located a graph of psi
At the origin
Which element has a higher work function: Li or Ai?
Li (see activity series)
What is the difference between Hund's Rule and the Pauli Exclusion Principle?
Hund -> spread out in orbitals before double up
Pauli -> opposite spin in same orbital
Wavelength of 1D Particle in a Box equation?
Wavelength = 2L/n
400-700 nm (or a similar answer)
What are the values for PE and KE in the 1D Particle in a Box? (Possible answers: x < 0, x > 0, x = 0)
PE = 0
KE > 0
What does a photon's hc/wavelength have to be equal to in order to eject an e-?
The element Isaacane has the electron config. [Ar] 4s^2 3d^5. How many planar and radial nodes does it have in its highest energy orbital?
2 planar nodes, 0 radial
KE for the 1D Particle in a Box equation?
(n^2)(h^2)/(8mL^2)
What is the delta E (in terms of R sub h) when an electron jumps from n = 1 to n=3 in a hydrogen atom?
(-R sub h)(1/9 - 1) (or equiv. forms)
What's the Hamiltonian?
(-h^2/(8(pi)m)) (d^2/dx^2 + d^2/dy^2 + d^2/dz^2) + V(x)
or
-(h-bar)/2m instead of the (-h^2/(8(pi)m))