# Find the energy of a photon of light if the wavelength of the light wave is 6.88 x 10 -7 m.89 x 10 -19 J 4.56 x 10 -40 J 3.46 x 10 18 J 7.56 x 10 -20…

Find the energy of a photon of light if the wavelength of the light wave is 6.88 x 10-7m.

2.89 x 10-19J

4.56 x 10-40J

3.46 x 1018J

7.56 x 10-20J

2.

When a neon atom is electrified, electrons jump to higher orbits. One of the electrons falls from an outside orbit to an inside orbit, giving off red light with a wavelength of 6.34 x 10-7m. Calculate the frequency of the red light given off by the neon atom.

5.27 x 10-31/s

4.74 x 10141/s

255 1/s

2.84 x 10-151/s

3.

An automobile has a wavelength that is not measurable by human standards. If the car has a mass of 2000 lbs (905 kg) and travels at 30 miles/hr (26.8 m/s), calculate the wavelength of the car.

1.96 x 10-35m

2.24 x 10-32m

1.10 x 10-38m

2.73 x 10-38m

4.

A local radio station can be tuned in by dialing your radio to a frequency of 1175 kHz. Calculate the energy of the wave. (Hint: kHz means 1 x 103 Hz.)

7.81 x 10-34J

7.57 x 10-44J

7.81 x 10-28J

7.81 x 10-31J

5.

Energy and wavelength have what type of mathematical relationship?

directly proportional

equal to each other

inversely proportional

energy is double the wavelength

6.

Which color of visible light has the most energy per photon?

violet

blue

green

red

7.

Find the wavelength of a photon of light if the energy of the light wave is 4.07 x 10-19J.

4.89 x 10-7 m

7.11 x 10-12 m

5.85 x 1018 m

1.28 x 10-19 m

8.

A microwave oven emits radiation at a frequency of 3.14 x 1010Hz. What is the wavelength of this radiation?

7.60 x 10-23m

3.19 x 10-11m

9.55 x 10-3m

3.82 x 10-2m

9.

The correct electron configuration for V is which of the following?

1s22s22p63s23p63d5

1s22s22p63s23p64s23d4

1s22s22p62d103s23p3

1s22s22p63s23p64s23d3

11.

How many unpaired electrons are there for Cr (#24)?

6

4

2

1

12.

An element has an electron configuration that ends in 6p4. Which column is it in?

14

15

16

17

13.

An atom of an element has the electron configuration [Kr]5s24d105p3. What is the element?

Sn

As

Bi

Sb

14.

1s22s22p63s23p64s23d4 is the electron configuration for which of the following atom?

Ca

Cr

Co

Fe

18.

What is the maximum electron capacity of an f sublevel?

2

14

10

6

19.

How many quantum numbers are required to uniquely describe an electron in an atom?

1

2

3

4

20.

Which of the following sets of quantum numbers refers to a 2s orbital?

1, 2, 2, +½

1, 2, 1, +½

2, 1, -1, +½

2, 0, 0, +½

21.

Which of the following sets of quantum numbers is not allowed?

1, 0, 0, 1

2, 1, 0, +½

3, 1, -1, -½

4, 3, -1, -½

22.

What are the four quantum numbers that describe the last electron in Np?

5, 3, 0, +½

5, 3, -1, +½

5, 4, 0, +½

5, 3, 0, -½

23.

What are the four quantum numbers for the last electron in for Ru3+?

4, 2, 0, +½

5, 0, 0, -½

4, 2, 2, -½

4, 2, -2, +½

24.

Which ion has a charge of -2 and whose last electron into an orbit has quantum numbers of 4, 1, -1, -½?

S2-

As2-

Se2-

Te2-

25.

Which ion has a charge of 2+ and whose last electron into an orbit has quantum numbers of 5, 2, 0, -½?

Pd2+

Pt2+

Au2+

Hg2+

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