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WorksheetsLight, Energy and the Quantum Model
Total questions: 27
Worksheet time: 14mins
The distance from tip to tip on a wave is the
Frequency
Wavelength
Amplitude
The symbol for the wavelength is
Which has the longest wavelength?
Visible light
Microwaves
Gamma Rays
UV light
Calculate the wavelength of a light with a frequency of 5.71 x 1014 Hz. (c = 3.0 x 108 m/s) (Remember to convert to nm) and determine the color of the light
5.25 x 10 -7 m ; Yellow
5.25 x 10-7 m ; blue
525 nm ; Green
525 nm; Red
The longer the wavelength
The higher the frequency
The lower the frequency
The higher the energy
Which color below has the highest frequency
Orange
Green
Violet
Red
The Symbol for frequency is
Energy is ____________ proportional to Frequency and ______________ proportional to wavelength.
directly, indirectly
directly, directly
indirectly, indirectly
indirectly, directly
Calculate the Energy of a wave with a frequency of
9.19 x 1019 Hz.
Planck's constant is
6.626 x 10 -34 J S
6.09 x 10-54 J
609 nm
6.09 x 10-14 J
6.09 x 10 -7 m
Check all that apply about the wave in the picture above. (hint: 3 are correct)
High Frequency
Long wavelength
Short wavelength
High Energy
Low Energy
The phenomenon when light shines on a metal and the electrons move is known as
Light Emission Spectra
Quantum Motion
Photoelectric Effect
Flame Test
The modern day version of the atom with the electron cloud surrounding the nucleus is the
Bohr Model
Quantum Mechanical Model
The Einstein 2.0
Heisenberg Model
Which electron is absorbing energy?
A
B
Which electron is emitting light?
A
B
Which electron is at the ground state?
A
B
The minimum amount of energy that can be gained or lost by an atom
Atomic energy
Photons
Quanta
None of the above
How many other elements have the same emission spectra as Helium?
2 other elements do
an infinite amount can have the same spectra
None, the spectra of elements are like their atomic fingerprints.
A 3-D region of the atom where it is highly probable to find an electron
The Nucleus
Atomic Orbital
Energy Level
The basis of the quantum model of the atom is
That the electron is a wave
That the electron is a point particle
That the electron is both a particle and a wave
None of the above
The Heisenberg uncertainty principle states that
electrons are awesomely imperfect
That its impossible to know both the location and speed of an electron
Electrons orbit the nucleus like the planets orbit the sun.
If you know the location of an electron then you know its speed
A diagram that indicates the the energy emitted by a substance with respect to wavelength. Atomic fingerprints
Electron Maps
Photoelectric Effect
Atomic Line emission Spectrum
Flame Test
Who proposed that electrons are only found in specific, discrete circular orbits around the nucleus?
Albert Einstein
Erwin Schrodinger
Ernest Rutherford
Niels Bohr
The number of wave cycles to pass a given point per unit of time.
Amplitude
Wavelength
Frequency
Electromagnetic spectrum consists of radiation over a broad range of wave lengths.
True
False
Radio waves have ................... frequency compared to ultraviolet rays.
a higher
equal
a lower
Each color of light has its characteristic wavelength and frequency.
True
False
In a neutral atom, the atomic number or number of protons is equal to...
neutrons
electrons
atomic mass
what is a neutral atom?
