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Finish Questions for Homework:

1.     Define the following terms:

a.     Electromagnetic radiation

b.     Wavelength

c.     Frequency

d.     Amplitude

e.     Electromagnetic Spectrum

f.       Quantum

g.     Plank’s Constant

h.     Photoelectric effect

i.       Photon

j.       Atomic emission Spectrum

2.     What did Rutherford propose about all atoms? Pg. 136

3.     What three things did Rutherford’s model of the atom not account for?

4.     What is the speed of light in a vacuum? Pg. 137

What is its symbol? Pg. 137

What is the speed of light a product of? Pg. 137

What is “c” equal to (give the equations)? Pg. 137

What is λ? What is v? Pg. 137

5.     Practice problems page 140. #’S 1 and 2

1.     Objects get their colors from reflecting only certain wavelengths when hit with white light. Light reflected from a green leaf is found to have a wavelength of 4.90 x 10^-7 m. What is the frequency of light?

2.     X rays can penetrate body tissues and are widely used to diagnose and treat disorders of internal body structures. What is the frequency of an X ray with a wavelength of 1.15 x 10^-10 m?

6.     What is the temperature of an object equal to?

7.     What is the value of Plank’s constant?

What does the equation show?

How do we find the energy of a Quantum?

How do we find the energy of a Photon?