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Bohr Model Review

Total questions: 15

Worksheet time: 1hrs 28mins

Name
Class
Date
1.
Light has characteristics of both a wave and a ____________.
a)
amplitude
b)
freqency
c)
joule
d)
photon
2.
As the frequency of an electromagnetic wave increases, the amount of energy in that wave...
a)
increases.
b)
decreases.
c)
stays the same.
3.
What is the energy of an X-ray with a frequency of 1.0 x 1017 Hz?
a)
6.63 x 10-34 J
b)
6.63 x 10-17 J
c)
1.51 x 1016 J
d)
1.51 x 10-16 J
4.
Find the energy, in joules per photon, of microwave radiation with a frequency of 7.91 × 10 10 1/s.
a)
6.63 x 10-34 J
b)
5.25 x 1014 J
c)
5.24 x 10-23 J
d)
1.19 x 1044 J
5.
What is the energy of light whose wavelength is 4.06 x 10-11 m? 
a)
2.69 x 10-44 J
b)
1.63 x 10-23 J
c)
4.90 x 10-15 J
d)
8.97 x 10-53 J
6.

True or False: The ground state is the highest energy state of an atom.

a)

True

b)

False

7.
For an electron to change from ground state to an excited stated it must...
a)
Absorb energy
b)
Release energy
8.

This picture is associated with which phenomenon?

a)

Blackbody radiation

b)

Photoelectric effect

c)

Atomic spectra

9.

The emission spectrum is produced when

a)

electrons release energy as they move to their excited state.

b)

electrons absorb energy as they move to their excited state.

c)

electrons release energy as they return to the ground state.

d)

electrons absorb energy as they return to the ground state.

10.
Why are line emission spectra of elements called "atomic fingerprints"?
a)
They are all the same
b)
They are all unique
c)
They are all similar
d)
They all contain colored light
11.
What is the frequency of UV light that has an energy of 2.39 × 10 -18 J? 
a)
2.32 x 10Hz
b)
3.60 x 1015 Hz
c)
1.58 x 10-51 Hz
d)
3 x 108  m/s
12.

What is the wavelength, in nm, of radiation which has an energy of 3.371 x 10-19 joules per photon?

a)

655.9 nm

b)

152.5 nm

c)

170.0 nm

d)

590.0 nm

e)

745.1 nm

13.

What is the frequency of radiation which has an energy of 219.1 kJ per mole (of these photons)?

a)

615.9 x 1014 Hz

b)

1.624 x 1014 Hz

c)

1.058 x 10-10 Hz

d)

5.489 x 1014 Hz

e)

3.588 x 10-19 Hz

14.

Which of the following statements concerning atomic spectra is/are true?

a)

As the frequencies of the lines of the spectrum of Hydrogen increase the lines rapidly come closer together

b)

As the wavelength of the lines of the spectrum of Hydrogen increases, the lines rapidly come close together.

c)

The frequency difference between successive line in the spectrum of Hydrogen indicates the energy in the quantized energy level.

d)

Hydrogen gives an emission spectrum and an absorption spectrum depending on the electron transition between energy level.

15.

n=1 to n=2 energy level gap is shown by which line in which series of the Hydrogen spectrum?

a)

Lyman series lowest frequency line

b)

Balmer series lowest frequency line

c)

Lyman series highest frequency line

d)

Balmer series highest frequency line

e)

Paschen series highest frequency line