Bridging Course 5 Flashcards
the relationship between wavelength and frequency
c = λ ν
the value of c
3 x 10^8 m s-1
Planck’s equation - Light as a wave phenomenon (formula)
E=hc/λ
Planck’s equation - Light as a stream of photons
E=hv
Planck’s constant
6.626 x 10^-34 J.s/particle
photoelectric effect (formula)
Einc = Φ + KE
Einc = hv0 +1/2mv^2
Rydberg formula
1/λ=RH (1/n1^2-1/n2^2)
Rydberg constant
1.0973 x 10^7 m-1
transitions from higher energy levels to n=1
Lyman Series
transitions from higher energy levels to n=2
Balmer Series
transitions from higher energy levels to n=3
Paschen Series
transitions from higher energy levels to n=4
Brackett Series
transitions from higher energy levels to n=5
Pfund Series
transitions from higher energy levels to n=6
Humphreys
equation to compute the energy levels available to the electron in the hydrogen atom (in joules).
E = - [(2.178 x 10^-18)/(n^2)] J
equation to compute the energy levels available to the electron in the hydrogen atom (in eV).
E = - (13.6/n^2) eV
De Broglie formula
λ=h/mv
allowed values for n
n = 1, 2, 3, …
allowed values for l
l=0 to n-1
allowed values for ml (magnetic quantum number)
ml = -l to l
allowed values for ms (spin quantum number)
ms = -1/2, 1/2
maximum number of orbitals in a subshell
2l + 1
maximum number of orbitals in a shell
n^2
maximum number of electrons in a subshell
2(2l+1)
maximum number of electrons in a shell
2n^2
number of angular nodes
l
number of radial nodes
n-1-l
total number of nodes
n-1
selection rules for the allowed transitions
Δl = +- 1
Δml = 0, +- 1
