wave worksheet - Avon Chemistry

ATOMIC STRUCTURE WORKSHEET:
Name: _____________________________________ p: _____
Light travels through space by means of waves. Each wave has a frequency ( ν ), a wavelength ( λ ), and an amplitude. The figure
below represents a light wave. Label the wavelength and amplitude. Then answer questions 1 - 4.
1. Given the distance scale in micrometers, µm ( 1.0 x 10 -6 m ), shown in the figure, what is the wavelength in meters per
wave
2. Given that 6.0 x 10 8 crests of the wave pass a point in 1.0 microsecond ( 1.0 x 10 -6 sec. ), what is the value of the frequency
of this wave in waves/sec (or Hz).
3. Calculate the product of the answers to questions 1 and 2 above.
4. What is the significance of the value just calculated
5. Fill in the missing information:
SYMBOL
23
11
12
6
C
Na
+ 1
ATOMIC
NUMBER
ATOMIC
MASS (amu)
NUMBER OF
PROTONS
NUMBER OF
NEUTRONS
NUMBER OF
ELECTRONS
CHARGE
18 40 0
127 74 -1
26 22 0
238 92 0

6. What is the energy of a quantum of light with a frequency of 6.17 x 10 14 Hz
7. Solar panels rely on light's ability to remove electrons from the surface of the solar cell. The energy required to release an
electron from atoms on the surface of the cell is 6.7 x 10 -19 J. What wavelength of light would be necessary for electrons to
leave the cell's surface and return to the surface to produce the energy (used as electricity)
8. A certain wavelength of blue light has a frequency of 6.91 x 10 14 Hz. What is the wavelength of this blue light
9. Find the average mass of Tungsten if the relative amounts are as follows:
Isotopic Mass:
Percentage:
181.27 amu 10.5 %
182.69 amu 19.6 %
184.73 amu 67.3 %
185.34 amu 2.6 %