student not expected to understand what is in chapter
student is expected to know if an idea is present in chapter
notes are another piece in understanding material
final thought: if you are 45 minutes into HW and you are not “getting it” or have run out of time, please understand my homework policy, and how I would rather you sleep and come to school refreshed with questions.
the picture above is the result of a “continuous” energy spectrum
continuous vs. quantized world
can you think of any examples of quantized in your experience?
it is difficult to process because we have no macro experience of this
see above: Balmer (1885)
electrons can only have certain levels
when given energy they rise accordingly
not a stable scenario, with the electron returning to original level
electrons will seek lowest energy possible
will “step down”
every possible combination of returning to lower level is seen
when returning to lower levels, energy emitted as differences
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