Light Equations
Electromagnetic Spectrum
Photoelectric Effect
Orbital Notation
Electron Configuration
100
A photon has a frequency (n) of 2.68 x 106 Hz. Calculate its energy.
E = 1.78 x 10-27 J
100
What type of electromagnetic radiation is used by mobile phones?
Microwave
100
What determines if the electrons are ejected?
The intensity affects the number of electrons, and the frequency affects the kinetic energy of the emitted electrons.
100
What are the four different orbitals?
s,p,d,f
100
Write the noble gas configuration for Radium.
[Rn] 7s^2
200
Calculate the wavelength and energy of light that has a frequency of 1.5 x 1015 Hz
Ans: λ = 2.0 x 10-7 m E = 9.95 x 10-19 J
200
Which light is refracted the furthest?
Violet
200
Explain one application of the photoelectric effect in your daily life.
The applications of the photoelectric effect brought us "electric eye" door openers, light meters used in photography, solar panels, and photostatic copying.
200
which element does this orbital notation represent?
Boron
200
Write the noble gas configuration for Bromine
[Ar] 4s^2
300
A photon of light has a wavelength of 0.050 cm. Calculate its energy.
Ans: E = 3.98 x 10-22 J
300
Which type of electromagnetic radiation is used to sterilize food?
Gamma
300
How does the intensity affect the photoelectric current?
As intensity increases, the photoelectric effect increases
300
What is the orbital notation for Phosphorus?
300
Write a noble gas configuration with an orbital diagram for Mercury
400
Calculate the total energy in 1.5 x 1013 photons of gamma radiation having l = 3.0 x 10-12 m.
Ans: 1.0 J
400
Which type of electromagnetic radiation travels faster?
Radio Waves and Gamma waves both travel at the same speed.
400
What do the negative circles represent in this diagram?
Electrons are ejected from the surface of the metal.
400
What is the orbital notation for Zinc?
400
Write complete electron configurations and draw orbital diagrams for strontium.
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2
500
Calculate the frequency of light that has a wavelength of 4.25 x 10-9m. Identify the type of electromagnetic radiation.
Ans: n = 7.1 x 1016 Hz. UV radiation
500
Write a sentence that describes the relationship between wavelength and energy of light.
The larger the wavelength the smaller the amount of energy.
500
Photoelectric effect was successfully explained first by..
Einstein
500
How is orbital notation different from electron configuration?
The orbital notation gives you more information by showing the electrons as arrows, so you can see the spin of electrons.
500
Write the noble gas configuration for Tungsten and the orbital notation.
