Question 1

Which of the following scientists developed the nuclear model of the atom

Accepted Answer

A)  John Dalton 
B)  Robert Millikan 
C)  J. J. Thomson 
D)  Henry Moseley 
E)  Ernest Rutherford

Question 2

The scientist who determined the magnitude of the electric charge of the electron was

Accepted Answer

A)  John Dalton. 
B)  Robert Millikan. 
C)  J. J. Thomson. 
D)  Henry Moseley. 
E)  R. Chang.

Question 3

Consider a neutral atom of the following isotope of sulfur: 
${}_{16}^{34}\text{S}$
 How many electrons, protons, and neutrons does the atom contain

Accepted Answer

A)  16 electrons, 16 protons, and 18 neutrons 
B)  18 electrons, 16 protons, and 18 neutrons 
C)  18electrons, 16 protons, and 16 neutrons 
D)  18electrons, 18 protons, and 18 neutrons 
E)  None of the above are correct

Question 4

Of the following which is the formula of an anion that contains a metal

Accepted Answer

A)  Cr2O72- 
B)  NH4+ 
C)  SO42- 
D)  SO32- 
E)  NO3-

Question 5

Using a cathode ray tube, J. J. Thomson determined the magnitude of the electric charge on the electron.

Accepted Answer

A) True 
 B)False

Question 6

There are the seven elements that naturally occur as diatomic molecules. This list contains four of those plus one that does not fit this distinction. Which one of the following does not occur naturally as a diatomic molecule

Accepted Answer

A)  Hydrogen 
B)  Fluorine 
C)  Nitrogen 
D)  Neon 
E)  Chlorine

Question 7

Give the formula of calcium phosphate.

Accepted Answer

A)  Ca3(PO4)2 
B)  Ca2(PO4)2 
C)  Ca3(PO4)3 
D)  Ca2(PO4)4 
E)  Ca4(PO4)2

Question 8

Name the compound Co2(SO3)3 .

Accepted Answer

A)  cobalt sulfate 
B)  cobalt(II) sulfite 
C)  cobalt(II) sulfate 
D)  cobalt(III) sulfite 
E)  cobalt(III) sulfate

Question 9

The table below describes four atoms. $\begin{array}{lcccc}
&\text { Atom A}&\text {  Atom B}&\text {  Atom C}&\text {  Atom D}\
\text { Number of protons } & 79 & 80 & 80 & 79 \
\text { Number of neutrons } & 118 & 120 & 118 & 120 \
\text { Number of electrons } & 79 & 80 & 80 & 79
\end{array}$ Which atoms represent the same element

Accepted Answer

A)  A and B represent the same element 
B)  A and C represent the same element 
C)  A and D represent the same element 
D)  B and C represent the same element 
E)  C and D represent the same element

Question 10

A magnesium ion, Mg2+, has

Accepted Answer

A)  12 protons and 13 electrons. 
B)  24 protons and 26 electrons. 
C)  12 protons and 10 electrons. 
D)  24 protons and 22 electrons. 
E)  12 protons and 14 electrons.

Question 11

What are the ions present in the compound CO2

Accepted Answer

A)  C4+, 2 O2- 
B)  C2+, 2 O- 
C)  C2+, O2- 
D)  C2+, O22- 
E)  no ions present

Question 12

The formula of carbonic acid is HCO3.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is the formula for hydroiodic acid

Accepted Answer

A)  HIO4 
B)  HIO3 
C)  HIO2 
D)  HIO 
E)  HI

Question 14

The following list shows the nitride ion, nitrate ion, and nitrite ion, in order.
N3-, NO3-, and NO2-

Accepted Answer

A) True 
 B)False

Question 15

Name the compound Cl2O5.

Accepted Answer

A)  chlorine pentoxide 
B)  dichlorine pentoxygen 
C)  dichlorine pentoxide 
D)  chloride oxide 
E)  dichloride pentoxide

Question 16

An iron(II) ion has:

Accepted Answer

A)  24 electrons and a charge of 2+ 
B)  24 electrons and a charge of 2- 
C)  26 electrons and a charge of 2+ 
D)  28 electrons and a charge of 2+ 
E)  28 electrons and a charge of 2-

Question 17

Which is the formula for lead(IV) chloride

Accepted Answer

A)  Pb4Cl 
B)  PbCl2 
C)  PbCl3 
D)  PbCl4 
E)  Pb2Cl4

Question 18

The following is the formula of a cation that contains a nonmetal: NH4+.

Accepted Answer

A) True 
 B)False

Question 19

A molecule of antifreeze, ethylene glycol, has the formula C2H4(OH) 2. How many atoms are there in one molecule of antifreeze

Accepted Answer

A)  10 
B)  8 
C)  6 
D)  3 
E)  None of the above

Question 20

Complete the following chart, in order from left to right $\begin{array}{|c|c|c|c|c|}
\hline \text { Isotope } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \
\hline & 40 & 19 & & 19 \
\hline
\end{array}$

Accepted Answer

A)  (40Zr), 21 
B)  (19K), 40 
C)  (21K), 19 
D)  (40K), 21 
E)  (38Sr), 19

Exam 2: Atoms Molecules and Ions

Which of the following scientists developed the nuclear model of the atom

The scientist who determined the magnitude of the electric charge of the electron was

Consider a neutral atom of the following isotope of sulfur: ${}_{16}^{34}\text{S}$ How many electrons, protons, and neutrons does the atom contain

Of the following which is the formula of an anion that contains a metal

Using a cathode ray tube, J. J. Thomson determined the magnitude of the electric charge on the electron.

There are the seven elements that naturally occur as diatomic molecules. This list contains four of those plus one that does not fit this distinction. Which one of the following does not occur naturally as a diatomic molecule

Give the formula of calcium phosphate.

Name the compound Co₂(SO₃) ₃ .

A magnesium ion, Mg²⁺, has

What are the ions present in the compound CO₂

The formula of carbonic acid is HCO₃.

Which of the following is the formula for hydroiodic acid

The following list shows the nitride ion, nitrate ion, and nitrite ion, in order. N^3-, NO₃^-, and NO₂^-

Name the compound Cl₂O₅.

An iron(II) ion has:

Which is the formula for lead(IV) chloride

The following is the formula of a cation that contains a nonmetal: NH₄⁺.

A molecule of antifreeze, ethylene glycol, has the formula C₂H₄(OH) ₂. How many atoms are there in one molecule of antifreeze

Complete the following chart, in order from left to right $\begin{array}{|c|c|c|c|c|}\hline \text { Isotope } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \\\hline & 40 & 19 & & 19 \\\hline\end{array}$

Exam 2: Atoms Molecules and Ions

Which of the following scientists developed the nuclear model of the atom

The scientist who determined the magnitude of the electric charge of the electron was

Consider a neutral atom of the following isotope of sulfur: 1634S{}_{16}^{34}\text{S}1634​S How many electrons, protons, and neutrons does the atom contain

Of the following which is the formula of an anion that contains a metal

Using a cathode ray tube, J. J. Thomson determined the magnitude of the electric charge on the electron.

There are the seven elements that naturally occur as diatomic molecules. This list contains four of those plus one that does not fit this distinction. Which one of the following does not occur naturally as a diatomic molecule

Give the formula of calcium phosphate.

Name the compound Co2(SO3) 3 .

A magnesium ion, Mg2+, has

What are the ions present in the compound CO2

The formula of carbonic acid is HCO3.

Which of the following is the formula for hydroiodic acid

The following list shows the nitride ion, nitrate ion, and nitrite ion, in order. N3-, NO3-, and NO2-

Name the compound Cl2O5.

An iron(II) ion has:

Which is the formula for lead(IV) chloride

The following is the formula of a cation that contains a nonmetal: NH4+.

A molecule of antifreeze, ethylene glycol, has the formula C2H4(OH) 2. How many atoms are there in one molecule of antifreeze

Consider a neutral atom of the following isotope of sulfur: ${}_{16}^{34}\text{S}$ How many electrons, protons, and neutrons does the atom contain

Name the compound Co₂(SO₃) ₃ .

A magnesium ion, Mg²⁺, has

What are the ions present in the compound CO₂

The formula of carbonic acid is HCO₃.

The following list shows the nitride ion, nitrate ion, and nitrite ion, in order. N^3-, NO₃^-, and NO₂^-

Name the compound Cl₂O₅.

The following is the formula of a cation that contains a nonmetal: NH₄⁺.

A molecule of antifreeze, ethylene glycol, has the formula C₂H₄(OH) ₂. How many atoms are there in one molecule of antifreeze