Name:
Date:
Class:
Hydrogen Atom Game
Post-test
| Speed Formula |
c = λf |
| Planck’s Formula |
E = hf |
| Speed of Light (c) |
3.00 × 108 m/s |
| Planck’s Constant (h) |
6.626 × 10-34 J· s |
| 1 electron volt (eV) = 1.602 × 10-19
J |
| 1 m = 1 × 109 nm |
| 1 m = 1 × 106 µm |
Answer the following questions to the best of your ability. You will
receive a grade for completing this page but your score will
only be used for information about what you may have learned from playing the game. Incomplete papers will earn a grade that reflects
the degree of incompleteness. Complete papers will receive a 100. You may use
a calculator. All necessary formulas and constants have been provided.
Show all work!
- What is the frequency in hertz (Hz) of light that has an energy
per photon of 2.12 × 10-18 J?
- What is the wavelength in meters (m) of light that has a
frequency of 4.57 × 1014 Hz?
- How many joules (J) equals the
energy of 13.062 eV?
- How many electron volts (eV) is
equal to 1.82 × 10-19 J?
- What is the wavelength of light that has an energy
per photon of 10.205 eV?
- How many nanometers (nm) is equal
to 4.34 × 10-7 m?
- In one or more complete sentences describe what happens when an
electron moves from a higher energy level to a lower energy level.
- In one or more complete sentences describe what is required for an
electron to move from a lower energy level to a higher energy level.
turn page over
page break
- Draw a picture showing emission of light due
to a transition between energy levels 5 and 2 using the energy-level
diagram shown at left. Draw and label the electron and the photon in
your picture.
- Draw a picture showing absorption of light
that causes and transition between energy levels 3 and 1 using the
energy-level diagram shown at left. Draw and label the electron and the
photon in your picture.
- How much energy (in electron volts, eV) is released or absorbed when an electron moves from energy level 2 to energy level 5? Energy level 2 is at -3.402 eV and energy level 5 is at -0.544 eV.
- What is the relationship between the color of a line in an atomic emission spectrum and what is happening inside the atoms?