Electron Configuration Test
This quiz is over Chapter 6.
I took the quiz on the myspace. Com/1515 and converted to this for easy at home testing.
- 1.
What is the electron configuration for bromine?
- A.
1s2 2s2 2p6 3s2 3p6 4d10 4s1 4p6
- B.
1s2 2s2 2p6 3s2 3p6 4d10 4s2 4p5
- C.
1s2 2s2 2p6 3s2 3p6 3d10 4s1 4p6
- D.
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p4
- E.
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5
Correct Answer
E. 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5 -
- 2.
What Element is represented by the electron configuration1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s1 ?
- A.
Ag
- B.
Rb
- C.
Cd
- D.
Sr
- E.
Cu
Correct Answer
A. Ag -
- 3.
How many electrons are there in the 3rd principle energy level (n=3) of a phosphorus atom?
- A.
3
- B.
5
- C.
6
- D.
8
- E.
10
Correct Answer
B. 5 -
- 4.
The electron configuration of a ground-state Co atom is:
- A.
[Ar] 4s2 3d7
- B.
1s2 2s2 2p6 3s2 3d9
- C.
[Ne]3s2 3d7
- D.
[Ar]4s1 3d5
- E.
[Ar]4s2 4d7
Correct Answer
A. [Ar] 4s2 3d7 -
- 5.
Which ground-state atom has an electron configuration described by the following orbital diagram?
- A.
Phosphorus
- B.
Nitrogen
- C.
Arsenic
- D.
Vanadium
- E.
Sulfur
Correct Answer
A. Phosphorus -
- 6.
What is the name given to the statement, "The most stable arrangement of electrons in orbitals of equal energy is the one in which the number of electrons with the same spin is maximized"?
- A.
The Pauli exclusion principle
- B.
Bohr's equation
- C.
Hund's rule
- D.
De Broglie's relation
- E.
Dalton's atomic theory
Correct Answer
C. Hund's rule -
- 7.
The maximum number of electrons that can occupy an energy level described by the principal quantum number, n, is:
- A.
N
- B.
N+1
- C.
2n
- D.
2n2
- E.
N2
Correct Answer
D. 2n2 -
- 8.
Electrons in an orbital with l =3 are in a/an
- A.
D orbital
- B.
F orbital
- C.
G orbital
- D.
P orbital
- E.
S orbital
Correct Answer
B. F orbital -
- 9.
A possible set of quantum numbers for the last electron added to complete an atom of gallium, Ga, in its ground state:
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
Correct Answer
C. C -
- 10.
Which one of the following sets of quantum numbers can correctly represent a 3p orbital?
- A.
A
- B.
B
- C.
C
- D.
D
- E.
E
Correct Answer
D. D -
- 11.
In the quantum mechanical treatment of the hydrogen atom, which one of the following combinations of quantum numbers is not allowed?
- A.
N=3, l=0, ml=0
- B.
N=3, l=1, ml= -1
- C.
N=3, l=2, ml=2
- D.
N=3, l=2, ml= -1
- E.
N=3, l=3, ml=2
Correct Answer
E. N=3, l=3, ml=2 -
- 12.
The energy of an electron in the hydrogen atom is determined by
- A.
The principal quantum number (n) only
- B.
The angular momentum quantum number (l) only
- C.
The principal and angular momentum quantum numbers (n and l)
- D.
The principal and magnetic quantum numbers (n and ml)
- E.
The principal, angular momentum and magnetic quantum numbers (n, ml and l)
Correct Answer
A. The principal quantum number (n) only -
- 13.
What is defined as the distance between identical points on successive waves.
- A.
Frequency
- B.
Amplitude
- C.
Magnitude
- D.
Wavelength
- E.
Light
Correct Answer
D. Wavelength -
- 14.
What is defined as the vertical distance from the midline of a wave to the top of the peak or the bottom of the trough
- A.
Light
- B.
Amplitude
- C.
Magnitude
- D.
Wavelength
- E.
Frequency
Correct Answer
B. Amplitude -
- 15.
Select the arrangement of electromagnetic radiation which starts with the lowest wavelength and increases to the greatest wavelength:
- A.
Radio, infrared, ultraviolet, gamma rays
- B.
Radio, ultraviolet, infrared, gamma rays
- C.
Gamma rays, radio, ultraviolet, infrared
- D.
Gamma rays, infrared, radio, ultraviolet
- E.
Gamma rays, ultraviolet, infrared, radio
Correct Answer
E. Gamma rays, ultraviolet, infrared, radio -
- 16.
Calculate the frequency of visible light having a wavelength of 686 nm (c=3.0 x 108 m/s)(the answers with ^ means that the following number is a power)
- A.
4.37x10^14 /s
- B.
4.37x10^5 /s
- C.
6.17x10^14 /s
- D.
2.29x10^-15 /s
- E.
2.29x10^-6 /s
Correct Answer
A. 4.37x10^14 /s -
- 17.
What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm (c= 3.0x108 m/s; h= 6.63x10-34 j s; nA=6.022x1023moles-1)?(the answers with ^ means that the following number is a power)
- A.
6.46x10^-16 J
- B.
6.46x10^-25 J
- C.
2.46x10^-4 J
- D.
12.4 kJ
- E.
246 kJ
Correct Answer
E. 246 kJ -
- 18.
Calculate the energy, in joules, required to excite a hydrogen atom by causing an electronictransition from the n=1 to the n=4 principal energy level. Recall that the energy level of the H atom are given by En=-2.18x10-18 J(1/n2).(the answers with ^ means that the following number is a power)
- A.
2.07x10^-29 J
- B.
2.19x10^5 J
- C.
2.04x10^-18 J
- D.
3.27x10^-17 J
- E.
2.25x10^-18 J
Correct Answer
C. 2.04x10^-18 J -
- 19.
Use the Rydberg equation to calculate the frequency of a photon absorbed when the atom undergoes a transition from n1=2 to n2=4. (R=1.096776x107m-1; c=3.0x108 m/s).(the answers with ^ means that the following number is a power)
- A.
2.056x10^6 s^-1
- B.
2.742x10^6 s^-1
- C.
6.165x10^14 s^-1
- D.
8.226x10^14 s^-1
- E.
>10^15 s^-1
Correct Answer
C. 6.165x10^14 s^-1 -
- 20.
Line spectra from all regions of the electromagnetic spectrum, including the Paschen series of infrared lines for hydrogen, are used by astronomers to identify elements present in the atmospheres of starts. Calculate the wavelength of the photo emitted when the hydrogen atom undergoes a transition from n=5 to n=3. (R=1.096776x107 m-1)
- A.
205.1 nm
- B.
384.6 nm
- C.
683.8 nm
- D.
1282 nm
- E.
>1500 nm
Correct Answer
D. 1282 nm -
- 21.
The de Broglie equation predicts that the wavelength (in m) of a proton moving at 1000 m/s is (h= 6.63 x10-34 J s):(the answers with ^ means that the following number is a power)
- A.
3.96x10^-10 m
- B.
3.96x10^-7 m
- C.
2.52x10^6 m
- D.
2.52x10^9 m
- E.
> 10^10 m
Correct Answer
A. 3.96x10^-10 m -
- 22.
According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5c 103 m/s, the uncertainty in it position (in m) is at least (mass electron=9.11x10-28 g):(the answers with ^ means that the following number is a power)
- A.
1.7x10^-8 m
- B.
6.6x10^-8 m
- C.
17m
- D.
66m
- E.
None of the choices is correct
Correct Answer
A. 1.7x10^-8 m -
- 23.
The shape of an atomic orbital is associated with
- A.
The principal quantum number (n)
- B.
The angular momentum quantum number (L)
- C.
The magnetic quantum number (ml)
- D.
The spin quantum number (ms)
- E.
The magnetic and spin quantum numbers, together
Correct Answer
B. The angular momentum quantum number (L) -
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Mar 19, 2022Quiz Edited by
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Nov 09, 2009Quiz Created by
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