CEM 141 E2 Exam Questions| Already answered| GRADED A+
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Course
CEM 141 E2
Institution
CEM 141 E2
symbol for wavelength - ANSWER-λ
symbol for frequency - ANSWER-v
energy increases as frequency _____ and wavelength _____ - ANSWER-increases, decreases
when waves interact and the crests and waves reinforce each other - ANSWER-constructive interference
when waves interact and create bands of l...
CEM 141 E2 Exam Questions| Already
answered| GRADED A+
symbol for wavelength - ANSWER-λ
symbol for frequency - ANSWER-v
energy increases as frequency _____ and wavelength _____ - ANSWER-increases, decreases
when waves interact and the crests and waves reinforce each other - ANSWER-constructive interference
when waves interact and create bands of light and dark - ANSWER-destructive interference
what experiment proved the existence of waves? - ANSWER-double slit experiment
when a high intensity light is shined on a metal, electrons are emitted - ANSWER-photo electric effect
what proved light was a particle? how? - ANSWER-the photo electric effect, light threshold
light from the sun can be split in a prism - ANSWER-visible spectrum
light from one particular element does not contain all colors of the spectrum, mostly dark with blips of
light - ANSWER-atomic emission spectrum
a visible spectrum with lines of darkness - ANSWER-atomic absorption spectrum
who said electrons move in orbits around the nucleus - ANSWER-Niels Bohr
the energy of atoms are ____ - ANSWER-quantized
, the Bohr model only works for what element? - ANSWER-hydrogen
when light hits an electron, the photon is absorbed, and the electron jumps to the next orbit level -
ANSWER-atomic excitation
when an electron ejects a photon and falls to a lower energy level - ANSWER-atomic de-excitation
what proved electrons acted like waves and how? - ANSWER-electron double slit experiment,
constructive/destructive interference
you can't measure both the position and momentum of an electron at the same time - ANSWER-
heisenberg uncertainty principle
we can't use the bohr model because... - ANSWER-we can't know both the position and speed of an
electron
regions of space where electrons can be found - ANSWER-atomic orbital
what letter determines the energy electrons and it's shell? - ANSWER-n
what letter identifies the letter of the orbital? - ANSWER-l
l = 0 - ANSWER-s
l = 1 - ANSWER-p
l = 2 - ANSWER-d
what letter is the spin quantum number? - ANSWER-m
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