Emission Spectra Lab
Pre-Lab Questions:
1. According to Bohr's atomic model, where may an atom's electrons be found?
2. How do electrons become excited?
3. State the equation that is used to determine the energy content of a packet of light of specific frequency.
4. What form of energy emission accompanies the return on excited electrons to the ground state?
Write and/or draw your observations as you view the emission spectra.
DATA TABLE
|
Gas |
Observations |
|
incandescent |
|
|
hydrogen (H2) |
|
|
carbon dioxide (CO2) |
|
|
helium (He) |
|
|
neon (Ne) |
|
|
water vapor (H2O) |
|
|
Air |
|
|
mercury (Hg) |
|
|
Argon |
|
|
Krypton |
|
|
Xenon |
|
|
nitrogen
(N2) |
|
|
iodine (I2) |
|
|
oxygen
(O2) |
|
|
fluorescent |
|