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Multiple Choice
A) Rutherford discovered the atomic nucleus by bombarding gold foil with electrons.
B) The proton and the neutron have identical masses.
C) The neutron's mass is equal to that of a proton plus an electron.
D) A neutral atom contains equal numbers of protons and electrons.
E) An atomic nucleus contains equal numbers of protons and neutrons.
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Multiple Choice
A) manganese carbide
B) magnesium(IV) carbonate
C) manganese(II) carbonate
D) magnesium(II) carbonate
E) manganese(IV) carbonate
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Multiple Choice
A) B3+
B) NaCl
C) He
D) (14C)
E) None of these species is an ion.
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Multiple Choice
A) John Dalton.
B) Robert Millikan.
C) J. J. Thomson.
D) Henry Moseley.
E) J. Burdge.
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Multiple Choice
A) CO
B) SrF2
C) Al
D) OCl2
E) HCl
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Multiple Choice
A) phosphorus sulfide
B) phosphoric sulfide
C) phosphorus decasulfide
D) tetraphosphorus decasulfide
E) phosphorus sulfite
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Multiple Choice
A) Cl and I
B) Al and K
C) Cl and Mg
D) C and S
E) Al and Mg
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Multiple Choice
A) Group 1A
B) Group 2A
C) Group 3A
D) Period 7
E) Period 1
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Multiple Choice
A) phosphorus selenide
B) phosphorus triselenide
C) tetraphosphorus selenide
D) phosphoric selenide
E) tetraphosphorus triselenide
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Short Answer
Correct Answer
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Multiple Choice
A) I2O5
B) IO5
C) 2IO5
D) I5O2
E) (IO5) 2
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Multiple Choice
A) H2S
B) NH3
C) I2
D) KI
E) CCl4
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Multiple Choice
A) increasing atomic mass.
B) increasing atomic number.
C) physical properties.
D) periodicity.
E) chemical reactivities.
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Multiple Choice
A) MnO2-
B) MnO4-
C) MgO42-
D) Mn2O7-
E) MgO22-
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Short Answer
Correct Answer
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View Answer
True/False
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Multiple Choice
A) metalloids.
B) a period.
C) noble gases.
D) a group.
E) nonmetals.
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Multiple Choice
A) SO2
B) O2
C) CS2
D) Ar
E) CO32-
Correct Answer
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Multiple Choice
A) two metals
B) a nonmetal and a metal
C) two nonmetals
D) two Group 1A elements
E) two noble gases
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