Electron Configuration Test
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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
- 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
- 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
- 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
- 5.
![Which ground-state atom has an electron configuration described by the following orbital diagram?]( "Which ground-state atom has an electron configuration described by the following orbital diagram?")
Which ground-state atom has an electron configuration described by the following orbital diagram?- A.
Phosphorus
- B.
Nitrogen
- C.
Arsenic
- D.
Vanadium
- E.
Sulfur
- 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
- 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
- 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
- 9.
![A possible set of quantum numbers for the last electron added to complete an atom of gallium, Ga, in its ground state:]( "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
- 10.
![Which one of the following sets of quantum numbers can correctly represent a 3p orbital?]( "Which one of the following sets of quantum numbers can correctly represent a 3p orbital?")
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
- 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
- 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)
- 13.What is defined as the distance between identical points on successive waves.
- A.
Frequency
- B.
Amplitude
- C.
Magnitude
- D.
Wavelength
- E.
Light
- 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
- 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
- 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
- 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
- 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
- 19.
- 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
- 20.
- A.
205.1 nm
- B.
384.6 nm
- C.
683.8 nm
- D.
1282 nm
- E.
>1500 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
- 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
- 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
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