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What is the term for the atomic model that
describes electrons circling the nucleus in an
orbit of specific energy?
A) Bohr atom
B) Rutherford atom
C) Thomson atom
D) quantum mechanical atom
E) none of the above
What is the term for the atomic model that
describes electrons circling the nucleus in an
orbit of specific energy?
A) Bohr atom
B) Rutherford atom
C) Thomson atom
D) quantum mechanical atom
E) none of the above
Answer: A
What is the term for an orbit that electrons occupy at a
fixed distance from the nucleus; designated 1, 2, 3, 4 .....?
A) energy level
B) orbital
C) shell
D) subshell
E) none of the above
What is the term for an orbit that electrons occupy at a
fixed distance from the nucleus; designated 1, 2, 3, 4 .....?
A) energy level
B) orbital
C) shell
D) subshell
E) none of the above
Answer: A
What is the term for the number of times a light wave
travels a complete cycle in one second?
A) energy
B) frequency
C) velocity
D) wavelength
E) none of the above
What is the term for the number of times a light wave
travels a complete cycle in one second?
A) energy
B) frequency
C) velocity
D) wavelength
E) none of the above
Answer: B
What is the term for two atoms of the same element that
differ by the number of neutrons in the nucleus?
A) atomic mass units
B) isotopes
C) nucleons
D) photons
E) protonium
What is the term for two atoms of the same element that
differ by the number of neutrons in the nucleus?
A) atomic mass units
B) isotopes
C) nucleons
D) photons
E) protonium
Answer: B
What is the term for the value that indicates the total
number of protons and neutrons in an atom of a given
element?
A) atomic notation
B) atomic number
C) atomic mass
D) mass number
E) number of mass
What is the term for the value that indicates the total
number of protons and neutrons in an atom of a given
element?
A) atomic notation
B) atomic number
C) atomic mass
D) mass number
E) number of mass
Answer: D
What is the term for light energy that appears violet to
red?
A) infrared spectrum
B) radiant energy spectrum
C) ultraviolet spectrum
D) visible spectrum
E) none of the above
What is the term for light energy that appears violet to
red?
A) infrared spectrum
B) radiant energy spectrum
C) ultraviolet spectrum
D) visible spectrum
E) none of the above
Answer: D
) Using atomic notation, indicate the isotope having 11 p+, 12 n0, and 11 e-.
A) 12
Na
11
B) 23
Na
11
23 Na
C) 12
D) 12
Mg
11
23 Mg
E) 12
Answer: B
) Using atomic notation, indicate the isotope having 11 p+, 12 n0, and 11 e-.
A) 12
Na
11
B) 23
Na
11
23 Na
C) 12
D) 12
Mg
11
23 Mg
E) 12
Answer: B
Using atomic notation, indicate the isotope having 25 p+, 30 n0, and 25 e-.
A) 30
Mn
25
B) 55
Mn
25
55 Mn
C) 30
D) 30
Zn
25
55 Zn
E) 30
Answer: B
Using atomic notation, indicate the isotope having 25 p+, 30 n0, and 25 e-.
A) 30
Mn
25
B) 55
Mn
25
55 Mn
C) 30
D) 30
Zn
25
55 Zn
E) 30
Answer: B
How many neutrons are in the nucleus of an atom of
bromine-79?
A) 35
B) 44
C) 79
D) 114
E) 124
How many neutrons are in the nucleus of an atom of
bromine-79?
A) 35
B) 44
C) 79
D) 114
E) 124
Answer: B
Which of the following energy-level changes for an
electron is most energetic?
A) 3 → 1
B) 4 → 1
C) 5 → 1
D) 6 → 1
E) All changes have the same energy.
Which of the following energy-level changes for an
electron is most energetic?
A) 3 → 1
B) 4 → 1
C) 5 → 1
D) 6 → 1
E) All changes have the same energy.
Answer: D
How many energy sublevels exist within the 3rd principal
energy level?
A) 1
B) 2
C) 3
D) 4
E) none of the above
How many energy sublevels exist within the 3rd principal
energy level?
A) 1
B) 2
C) 3
D) 4
E) none of the above
Answer: C
What is the maximum number of electrons that can
occupy the 3rd principal energy level?
A) 1
B) 2
C) 4
D) 8
E) none of the above
What is the maximum number of electrons that can
occupy the 3rd principal energy level?
A) 1
B) 2
C) 4
D) 8
E) none of the above
Answer: E
Which electron sublevel follows the 5s sublevel according
to increasing energy?
A) 4p
B) 4d
C) 5p
D) 5d
E) 6s
Which electron sublevel follows the 5s sublevel according
to increasing energy?
A) 4p
B) 4d
C) 5p
D) 5d
E) 6s
Answer: B
What is the electron configuration for an atom of silicon?
A) 1s2 2s2 2p4
B) 1s2 2s2 2p6 3s2
C) 1s2 2s2 2p6 3s2 3p2
D) 1s2 2s2 2p6 3s2 3p4
E) none of the above
Answer: C
What is the electron configuration for an atom of silicon?
A) 1s2 2s2 2p4
B) 1s2 2s2 2p6 3s2
C) 1s2 2s2 2p6 3s2 3p2
D) 1s2 2s2 2p6 3s2 3p4
E) none of the above
Answer: C
Which element has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2?
A) Ca
B) Rb
C) Sn
D) Sr
E) none of the above
Answer: D
Which element has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2?
A) Ca
B) Rb
C) Sn
D) Sr
E) none of the above
Answer: D
Which of the following is an alkaline earth metal?
A) Mg
B) Ca
C) Ba
D) all of the above
E) none of the above
Which of the following is an alkaline earth metal?
A) Mg
B) Ca
C) Ba
D) all of the above
E) none of the above
Answer: D
Which of the following is an alkaline earth metal?
A) Al
B) Rb
C) Zn
D) all of the above
E) none of the above
Which of the following is an alkaline earth metal?
A) Al
B) Rb
C) Zn
D) all of the above
E) none of the above
Answer: E
Which of the following elements has the largest atomic
radius?
A) Li
B) Be
C) B
D) Na
E) Mg
Which of the following elements has the largest atomic
radius?
A) Li
B) Be
C) B
D) Na
E) Mg
Answer: D
What is the term for an orbit that electrons occupy at a
fixed distance from the nucleus; designated 1, 2, 3, 4 .....?
A) energy level
B) orbital
C) shell
D) subshell
E) none of the above
What is the term for an orbit that electrons occupy at a
fixed distance from the nucleus; designated 1, 2, 3, 4 .....?
A) energy level
B) orbital
C) shell
D) subshell
E) none of the above
Answer: A
) Given the chemical formulas CH4, NH3, and H2O, predict the formula for silane, Si?H?.
A) SiH4
B) SiH3
C) H2Si
D) SiH2
E) SiH
Answer: A
) Given the chemical formulas CH4, NH3, and H2O, predict the formula for silane, Si?H?.
A) SiH4
B) SiH3
C) H2Si
D) SiH2
E) SiH
Answer: A
What is the core notation for the electron configuration of an aluminum atom?
A) [Ne]
B) [Ne] 2s2 2p1
C) [Ne] 3s2 3p1
D) [Ne] 3s2 3d1
E) [Ar]
Answer: C
What is the core notation for the electron configuration of an aluminum atom?
A) [Ne]
B) [Ne] 2s2 2p1
C) [Ne] 3s2 3p1
D) [Ne] 3s2 3d1
E) [Ar]
Answer: C
Which element has the following electron configuration:
[Xe] 6s2?
A) Ba
B) Cs
C) Hf
D) Pb
E) Sr
Which element has the following electron configuration:
[Xe] 6s2?
A) Ba
B) Cs
C) Hf
D) Pb
E) Sr
Answer: A
Predict the number of valence electrons for a sulfur
atom.
A) 4
B) 6
C) 8
D) 16
E) 32
Predict the number of valence electrons for a sulfur
atom.
A) 4
B) 6
C) 8
D) 16
E) 32
Answer: B
Which of the following is the electron dot formula for an atom of potassium?
A)
B)
C)
D)
E)
Answer: A
Which of the following is the electron dot formula for an atom of potassium?
A)
B)
C)
D)
E)
Answer: A
Which of the following is the electron dot formula for an atom of carbon?
A)
B)
C)
D)
E)
Answer: C
Which of the following is the electron dot formula for an atom of carbon?
A)
B)
C)
D)
E)
Answer: C
What is the systematic name for MnO4̅ ?
A) manganese ion
B) manganate ion
C) manganite ion
D) permanganate ion
E) none of the above
What is the systematic name for MnO4̅ ?
A) manganese ion
B) manganate ion
C) manganite ion
D) permanganate ion
E) none of the above
Answer: D
48) What is the systematic name for PO43-?
A) phosphide ion
B) phosphite ion
C) phosphate ion
D) tetraphosphate ion
E) none of the above
48) What is the systematic name for PO43-?
A) phosphide ion
B) phosphite ion
C) phosphate ion
D) tetraphosphate ion
E) none of the above
Answer: C
What is the chemical formula for the sulfite ion?
A) SO3B) SO32C) SO4D) SO42E) none of the above
Answer: B
What is the chemical formula for the sulfite ion?
A) SO3B) SO32C) SO4D) SO42E) none of the above
Answer: B
What is the chemical formula for the hydrogen sulfate ion?
A) HSO3B) HSO32C) HSO4D) HSO42E) none of the above
Answer: C
What is the chemical formula for the hydrogen sulfate ion?
A) HSO3B) HSO32C) HSO4D) HSO42E) none of the above
Answer: C
What is the chemical formula for the binary compound composed of Co3+ and S2- ions?
A) CoS
B) Co2S3
C) Co3S2
D) Co6S6
E) none of the above
Answer: B
What is the chemical formula for the binary compound composed of Co3+ and S2- ions?
A) CoS
B) Co2S3
C) Co3S2
D) Co6S6
E) none of the above
Answer: B
What is the chemical formula for the ternary compound composed of Ca2+ and PO43- ions?
A) CaPO4
B) Ca2(PO4)3
C) Ca3(PO4)2
D) Ca6(PO4)6
E) none of the above
Answer: C
What is the chemical formula for the ternary compound composed of Ca2+ and PO43- ions?
A) CaPO4
B) Ca2(PO4)3
C) Ca3(PO4)2
D) Ca6(PO4)6
E) none of the above
Answer: C
What is the chemical formula for strontium iodide?
A) SrI
B) SrI2
C) SrI3
D) Sr3I2
E) none of the above
Answer: B
What is the chemical formula for strontium iodide?
A) SrI
B) SrI2
C) SrI3
D) Sr3I2
E) none of the above
Answer: B
What is the chemical formula for cobalt(II) bromide?
A) Co2Br
B) CoBr2
C) Co3Br2
D) Co2Br3
E) none of the above
Answer: B
What is the chemical formula for cobalt(II) bromide?
A) Co2Br
B) CoBr2
C) Co3Br2
D) Co2Br3
E) none of the above
Answer: B
What is the ionic charge for the chromium ion in Cr2(SO4)3?
A) zero
B) 1+
C) 2+
D) 3+
E) none of the above
Answer: D
What is the ionic charge for the chromium ion in Cr2(SO4)3?
A) zero
B) 1+
C) 2+
D) 3+
E) none of the above
Answer: D
) What is the chemical formula for iron(III) sulfate?
A) FeSO3
B) FeSO4
C) Fe2(SO3)3
D) Fe2(SO4)3
E) none of the above
Answer: D
) What is the chemical formula for iron(III) sulfate?
A) FeSO3
B) FeSO4
C) Fe2(SO3)3
D) Fe2(SO4)3
E) none of the above
Answer: D
What is the coefficient of oxygen gas after balancing the following equation?
__P(s) + __O2(g)
→
A) 1
B) 2
C) 4
D) 5
E) none of the above
Answer: D
Topic: 8.3 Balancing Chemical Equations
__P2O5(s)
What is the coefficient of oxygen gas after balancing the following equation?
__P(s) + __O2(g)
→
A) 1
B) 2
C) 4
D) 5
E) none of the above
Answer: D
Topic: 8.3 Balancing Chemical Equations
__P2O5(s)
What is the coefficient of carbon dioxide after balancing the following equation?
__Cr2(CO3)3(s)
A) 1
B) 2
C) 3
D) 4
E) none of the above
Answer: C


__Cr2O3(s) + __CO2(g)
What is the coefficient of carbon dioxide after balancing the following equation?
__Cr2(CO3)3(s)
A) 1
B) 2
C) 3
D) 4
E) none of the above
Answer: C


__Cr2O3(s) + __CO2(g)
What is the coefficient of water after balancing the following equation?
__Li(s) + __H2O(l)
A) 1
B) 2
C) 3
D) 4
E) none of the above
Answer: B
→
LiOH(aq) + __H2(g)
What is the coefficient of water after balancing the following equation?
__Li(s) + __H2O(l)
A) 1
B) 2
C) 3
D) 4
E) none of the above
Answer: B
→
LiOH(aq) + __H2(g)
What is the predicted product from the following combination reaction?
Sr(s) + Br2(l)
A) SrBr
B) Sr2Br
C) SrBr2
D) Sr2Br3
E) Sr3Br2
Answer: C


What is the predicted product from the following combination reaction?
Sr(s) + Br2(l)
A) SrBr
B) Sr2Br
C) SrBr2
D) Sr2Br3
E) Sr3Br2
Answer: C

