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WorksheetsAP Chemistry Electron Structure and Periodic Properties
Total questions: 20
Worksheet time: 35mins
Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is __________ MHz.
50
20
2.0
200
500
What is the frequency of light (s-1) that has a wavelength of 1.23 x 10-6 cm?
2.44 x 1016
1.04 x 10-13 C
9.62 x 1012
3.69
The wavelength of a photon that has an energy of 5.25 x 10-19 J is __________ m
4.21 x 10-24
2.38 x 1023
2.64 x 106
3.79 x 10-7
The frequency of a photon that has an energy of 3.7 x 10-18 J is __________ s-1
5.4 x 10-8
5.6 x 1015
1.8 x 10-16
2.5 x 10-15
Of the following transitions in the Bohr hydrogen atom, the __________ transition results in the emission of the highest-energy photon.
n = 6 ¬ n = 1
n = 1 ¬ n = 6
n = 3 ¬ n = 6
n = 6 ¬ n = 3
The lines in the emission spectrum of hydrogen result from __________.
electrons given off by hydrogen as it cools
decomposing hydrogen atoms
electrons given off by hydrogen when it burns
energy given off in the form of visible light when an electron moves from a higher energy state to a lower energy state
Which of the subshells below do not exist due to the constraints upon the azimuthal quantum number?
2p
2s
2d
all of the above
__________-orbitals are spherically symmetrical
d
p
s
f
Which one of the following represents an acceptable possible set of quantum numbers (in the order n, l, ml, ms) for an electron in an atom?
2, 1, 0, 0
2, 2, 0, 1/2
2, 0, 2, +1/2
2, 0, 1, -1/2
2, 1, -1, 1/2
An example of an electron configuration of a transition metal is __________.
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6 4s2 3d8
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
1s2 2s2 2p4 3s1
An example of an excited state electron configuration for fluorine is _________
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6 4s2 3d8
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
1s2 2s2 2p4 3s1
The first ionization energies of the elements __________ as you go from left to right across a period of the periodic table, and __________ as you go from the bottom to the top of a group in the table
increase, increase
increase, decrease
decrease, increase
decrease, decrease
are completely unpredictable
Which of the following correctly represents the second ionization of calcium?
Ca+ (g) -> Ca2+ (g) + e
Ca (g) --> Ca+ (g) + e
Ca- (g) + e- -> Ca2- (g)
Ca+ (g) + e- -> Ca (g)
Ca+ (g) + e- ->Ca2+ (g)
Which ion in the isoelectronic series below has the smallest radius in a crystal?
O2-
N3-
Na+
Al3+
F-
The electron configuration of the atom that is expected to have the lowest first ionization energy is __________
[Kr] 5s1
[Ne] 3s2 3p5
[Ar] 4s2 3d10 4p4
[Ne] 3s2 3p6
[Ar] 4s1
The electron configuration of the atom that is expected to have the highest first ionization energy is __________
[Kr] 5s1
[Ne] 3s2 3p5
[Ar] 4s2 3d10 4p4
[Ne] 3s2 3p6
[Ar] 4s1
Of the choices below, which gives the order for first ionization energies?
Cl > S > Al > Ar > Si
S > Si > Cl > Al > Ar
Al > Si > S > Cl > Ar
Cl > S > Al > Si > Ar
Ar > Cl > S > Si > Al
Which of the following has the largest second ionization energy?
P
Al
Mg
Na
Si
__________ have the lowest first ionization energies of the groups listed.
Transition elements
Halogens
Alkaline earth metals
Alkali metals
Noble Gases
Of the elements below, __________ is the most metallic.
sodium
barium
calcium
cesium
magnesium
