spectroscopy Flashcards
(24 cards)
what are the units for wavenumber
cm-1
what is a black body radiation
an ideal object which can absorb all frequencies of radiation uniformly
what is the energy density
energy inside the container / volume
what is the energy spectral density
p(lamda,T) - its light output only depends on temperature
what is the Coulomb force
the force experienced by an electron.
what is the centripetal force
the force which keeps the electron moving in a circular path
Fcoul = Fcentr at ___
equilibrium
what is the equation when Fcoul = Fcentr - in equation sheet
req =
what is the total energy of an electron
Ecoul + Ekin
what is the equation for the total energy of an electron - in equation sheet
Etot =
what is the equation for particles behaving like waves
lamda = h / mV
what is the equation for the radius in a Bohr model
rn = n x h / mV
what is the equation used to determine the binding energy of an electron - formula sheet
Etot(n) =
ΔE = hv =
hc / lamda
to find the ionisation energy for the removal of electrons …
it goes to infinity
what is the work function
the minimum energy required to remove an electron
what is the equation of the conservation of energy - formula sheet
hv = Ek + BE
how do you find Ek from all the different shell values
Ek = E1 - E2 - E3
Ek _____ depend on hv of the photon
does not
BE ______ depend on the hv of the photon
does
what equation would you use when trying to find the unknown element of the photon ejected (BORH MODEL EQUATION)!!!!!!!!
E = Rh Z^2 (1/ni^2 - 1/nf^2)
what is the Rydberg constant in eV
13.6
what is the apparent binding energy
total energy involved in the transition, which includes the binding energies of the inner shell (M and N shells) but not the X-ray photon energy
