Chapter 7 Quiz - The Fundamental Nature Of Matter & Energy
Chapter 7 Quiz
- 1.If the wavelength of an electromagnetic wave is 3.00 meters, then what is its frequency?
- A.
1.00 x 10^8 Hz
- B.
9.00 x 10^8 Hz
- C.
1.00 x 10^7 Hz
- D.
9.00 x 10^9 Hz
- 2.If an electromagnetic wave has a frequency of 1.00 x 1010 Hz, what would be the energy contained in one photon of this wave?
- A.
3.00 x 10^-2 J
- B.
3.00 x 10^18 J
- C.
6.63 x 10^-24 J
- D.
6.63 x 10^-34 J
- 3.Assume a 3.31-kg ball is thrown at a speed of 1.00 m/s. What is the deBroglie wavelength of this object?
- A.
2.62 x 10^-31 m
- B.
2.00 x 10^-34 m
- C.
5.00 x 10^-35 m
- D.
3.31 x 10^-34 m
- 4.Which of the following quantum leaps would require an absorption of energy?
- A.
N=2 to n=1
- B.
N=5 to n=3
- C.
N=4 to n=3
- D.
N=5 to n=6
- 5.Which of the following words describes the lowest part of a wave?
- A.
Crest
- B.
Trough
- C.
Amplitude
- D.
Nadir
- 6.Consider the only unpaired electron in an atom of aluminum. What is the ml value for this electron?
- A.
3
- B.
1
- C.
0
- D.
-1
- 7.Which element's sole unpaired electron has the quantum numbers n = 3 l = 2 ml= -2 ms = +1/2 ?
- A.
Sc
- B.
Ga
- C.
Al
- D.
Mg
- 8.The shape of a typical d orbital would be
- A.
Spherical
- B.
Figure-eight shaped
- C.
Four-leaf-clover shaped
- D.
Pinwheel shaped
- 9.Hund's rule states that electrons cannot be
- A.
Placed randomly in orbitals
- B.
Paired until each orbital has an electron
- C.
Has sublevels such as 1p, 2d, etc.
- D.
In more than one location at the same time
- 10.Which element has the electron configuration 1s22s22p63s23p64s23d104p2?
- A.
Titanium
- B.
Gallium
- C.
Tin
- D.
Germanium
- 11.Which element has the electron configuration 1s22s22p63s23p64s23d4?
- A.
Vanadium
- B.
Chromium
- C.
Manganese
- D.
None of the above
- 12.Which of the following pairs of quantum numbers would be IMPOSSIBLE?
- A.
N = 3 l = 2
- B.
N = 2 l = 2
- C.
N = 10 l = 4
- D.
More than one of the above
- 13.What is the maximum number of orbitals in the 3d sublevel?
- A.
10
- B.
1
- C.
3
- D.
5
- 14.How many electrons are in the 4th energy level of a zirconium atom?
- A.
2
- B.
8
- C.
10
- D.
18
- 15.The Heisenberg uncertainty principle states that
- A.
An electron's exact location and velocity cannot be known with certainty
- B.
No two electrons in an atom can have the same set of four quantum numbers
- C.
Electrons are filled into orbitals in an ordered fashion
- D.
Only two electrons can fit in an orbital
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