Deck 2: Atoms Molecules and Ions

Question 1

Which of the following elements is chemically similar to oxygen

A) sulfur
B) calcium
C) iron
D) nickel
E) sodium

Answer 1

sulfur

Question 2

An atom of the isotope ¹³⁷Ba consists of how many protons (p), neutrons (n), and electrons (e)

A) 56 p, 137 n, 56 e
B) 56 p, 81 n, 56 e
C) 137 p, 81 n, 56 e
D) 56 p, 56 n, 56 e
E) 81 p, 56 n, 81 e

Answer 2

56 p, 81 n, 56 e

Question 3

An anion is defined as

A) a charged atom or group of atoms with a net negative charge.
B) a stable atom.
C) a group of stable atoms.
D) an atom or group of atoms with a net positive charge.

Answer 3

a charged atom or group of atoms with a net negative charge.

Question 4

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

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

Question 5

Which of the following elements is chemically similar to magnesium

A) sulfur
B) calcium
C) iron
D) nickel
E) potassium

Question 6

When J. J. Thomson discovered the electron, what physical property of the electron did he measure

A) its charge, e
B) its charge-to-mass ratio, e/m
C) its temperature, T
D) its mass, m
E) its atomic number, Z

Question 7

Complete the following chart, in order from left to right
$\begin{array}{|c|c|c|c|c|}\hline \text { Ion } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \\\hline & 4 & 2 & & 0 \\\hline\end{array}$

A) (⁴He), 2

B) (⁴Be), 4

C) (⁴Be), 2

D) (⁴He), 4

E) (²H), 2

Question 8

Complete the following chart, in order from left to right $\begin{array}{|c|l|l|l|l|}\hline \text { Isotope } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \\\hline{ }^{14} \mathrm{~N} & & & & \\\hline\end{array}$

A) 14, 7, 7, 7
B) 14, 7, 14, 7
C) 7, 7, 7, 7
D) 7, 14, 7, 7
E) Some other answer

Question 9

Complete the following chart, in order from left to right
$\begin{array}{|c|c|c|c|c|}\hline \text { Ion } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \\\hline{ }^{40} \mathrm{Ca}^{2+} & & & & \\\hline\end{array}$

A) 40, 20, 20, 20

B) 40, 20, 20, 18

C) 20, 20, 40, 20

D) 40, 20, 20, 22

E) 20, 40, 20, 22

Question 10

Which of the following are isotopes

A) (¹⁴C) and ¹³C
B) (¹⁴C) and ¹⁴N
C) (¹⁴N) and ¹⁴N^3-
D) (¹²C)and ¹²CO
E) (¹⁴N) and ¹⁴N₂

Question 11

The elements in a column of the periodic table are known as

A) metalloids.
B) a period.
C) noble gases.
D) a group.
E) nonmetals.

Question 12

Which of the following elements is chemically similar to potassium

A) calcium
B) arsenic
C) phosphorus
D) cerium
E) cesium

Question 13

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

A) (⁴⁰Zr), 21

B) (¹⁹K), 40

C) (²¹K), 19

D) (⁴⁰K), 21

E) (³⁸Sr), 19

Question 14

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

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

Question 15

Rutherford's experiment with alpha particle scattering by gold foil established that

A) protons are not evenly distributed throughout an atom.
B) electrons have a negative charge.
C) electrons have a positive charge.
D) atoms are made of protons, neutrons, and electrons.
E) protons are 1840 times heavier than electrons.

Question 16

Give the number of protons (p), neutrons (n), and electrons E) in one atom of ²³⁸U.

A) 146 p, 92 n, 92 e
B) 92 p, 92 n, 92 e
C) 92 p, 146 n, 92e
D) 146 p, 28 n, 146 e
E) 238 p, 146 n, 238 e

Question 17

In a cathode ray tube

A) electrons pass from the anode to the cathode.
B) electrons pass from the cathode to the anode.
C) protons pass from the anode to the cathode.
D) protons pass from the cathode to the anode.

Question 18

Which of the following elements is most likely to be a good conductor of electricity

A) N
B) S
C) He
D) Cl
E) Fe

Question 19

Complete the following chart, in order from left to right
$\begin{array}{|c|c|c|c|c|}\hline \text { Isotope } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \\\hline & & 40 & 57 & 40 \\\hline\end{array}$

A) (⁹⁷Zr), 97

B) (⁴⁰Zr), 57

C) (⁵⁷La), 40

D) (⁹⁷Bk), 80

E) (⁸⁰Hg), 97

Question 20

Atoms of the same element with different mass numbers are called

A) ions.
B) neutrons.
C) allotropes.
D) chemical families.
E) isotopes.

Question 21

What is the formula for the ionic compound containing calcium ions and nitrate ions

A) Ca₃N₂
B) Ca(NO₃)₂
C) Ca₂NO₃
D) Ca₂NO₂
E) CaNO₃

Question 22

What are the two different ions present in the compound FeCl₃

Question 23

What is the empirical formula for C₆H₁₄O

A) C₆H₁₄O
B) C₃H₇O
C) C₂H₇O
D) C₁₂H₂₈O₂
E) CHO

Question 24

What are the ions present in the compound CO₂

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

Question 25

What are the two different ions present in the compound CaS

A) Ca⁺, S^-
B) Ca^2-, S²⁺
C) Ca^-, S⁺
D) Ca²⁺, S^2-
E) Ca, S

Question 26

An oxide ion, O^2-, has:

A) 8 protons and 10 electrons
B) 10 protons and 8 electrons
C) 8 protons and 9 electrons
D) 8 protons and 7 electrons
E) 10 protons and 7 electrons

Question 27

Which one of the following is an ion

A) B³⁺
B) NaCl
C) He
D) ¹⁴C
E) none of the above

Question 28

A phosphide ion has:

A) 10 protons and 13 electrons
B) 12 protons and 15 electrons
C) 15 protons and 15 electrons
D) 15 protons and 18 electrons
E) 18 protons and 21 electrons

Question 29

A magnesium ion, Mg²⁺, has

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 30

An aluminum ion, Al³⁺, has:

A) 13 protons and 13 electrons
B) 27 protons and 24 electrons
C) 16 protons and 13 electrons
D) 13 protons and 10 electrons
E) 10 protons and 13 electrons

Question 31

What is the empirical formula for C₁₀H₂₂O₂

A) C₁₀H₂₂O₂
B) C₅H₁₁O
C) C₂₀H₄₄O₄
D) C₂H₁₁O
E) C₅H₁₁O₂

Question 32

An iron(II) ion has:

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 33

How many protons and electrons are present in one Br^- ion

A) 35 p, 35 e
B) 80 p, 81 e
C) 35 p, 34 e
D) 35 p, 36 e
E) 80 p, 34 e

Question 34

Which one of the following elements is most likely to form a 2- ion

A) scandium
B) selenium
C) silicon
D) strontium
E) iodine

Question 35

What is the ion ClO₄^- named

A) chloride ion
B) chlorite ion
C) hypochlorite ion
D) perchlorite ion
E) perchlorate ion

Question 36

Which of the following is an example of an empirical formula

A) C₉H₁₂
B) C₉H₁₈Cl₂
C) C₆H₆
D) N₂O₄
E) C₂H₂O₂

Question 37

Which one of the following elements is most likely to form a 2+ ion

A) calcium
B) carbon
C) fluorine
D) oxygen
E) sodium

Question 38

What are the ions present in the compound CH₄

A) C⁴⁺, H⁺
B) C^4-, H⁺
C) C^-, H⁺
D) C^4- H⁴⁺
E) no ions present

Question 39

What are the two different ions present in the compound Na₂S

A) Na₂⁺, S^2-
B) Na⁺, S^2-
C) Na²⁺, S^2-
D) Na⁺, S^-
E) Na²⁺, S^-

Question 40

What are the two different ions present in the compound Li₃N

A) Li⁺, N^3-
B) Li₃⁺, N^-
C) Li₃³⁺, N^3-
D) Li⁺, N^-
E) Li³⁺, N^3-

Question 41

The formula for magnesium sulfate is

A) MnS
B) MgS
C) MnSO₃
D) MgSO₄
E) MgSO₃

Question 42

What are the two different ions present in the compound Al(NO₃)₃

A) Al³⁺, (NO₃)₃^-
B) Al⁺, NO₃^-
C) Al³⁺, NO₃^-
D) Al³⁺, NO₃^3-
E) Al⁺, (NO₃)₃^-

Question 43

Give the formula for cobalt(II) chlorate dihydrate.

A) CoCl₂·2H₂O
B) CoClO₃(H₂O)₂
C) Co(ClO₃)₂(H₂O)₂
D) Co(ClO₃)₂·2H₂O
E) Co₂(ClO₃)₃·2H₂O

Question 44

The formula for sodium sulfide is

A) NaS.
B) K₂S.
C) NaS₂.
D) Na₂S.
E) SeS.

Question 45

Name the compound Co(NO₃)₂.

A) Cobalt (I) nitrate
B) Cobalt (II) nitrate
C) Cobalt (I) nitride
D) Cobalt nitrite
E) Cobalt (II) nitride

Question 46

Name the compound Al₂O₃.

A) Aluminum oxide
B) Aluminum (II) oxide
C) Dialuminum trioxide
D) Aluminum trioxide
E) Aluminum (I) oxide

Question 47

Which is the correct formula for iron(II) phosphate

A) Fe₂PO₄
B) Fe₃(PO₄)₂
C) Fe₂PO₃
D) Fe(PO₄)₂
E) Fe(PO₃)₂

Question 48

The name for Ba(OH)₂ is

A) barium hydrogen oxide.
B) boron hydroxide.
C) barium hydrate.
D) beryllium hydroxide.
E) barium hydroxide.

Question 49

The name for CuSO₄·5H₂O is

A) copper sulfate acid.
B) copper sulfate pentahydrate.
C) copper(II) sulfate acid.
D) copper(II) sulfate pentahydrate.
E) copper(V) sulfate hydrate.

Question 50

What are the two different ions present in the compound NH₄NO₃

A) NH₄^-, NO₃⁺
B) NH₄⁺, NO₃^-
C) N^3-, H⁺, O^2-
D) NH₄³⁺, NO^4-
E) NH₄⁺, NO^3-

Question 51

The name for KHCO₃ is

A) calcium bicarbonate.
B) calcium carbonate.
C) potassium carbonate.
D) calcium hydrogen carbon trioxide.
E) potassium hydrogen carbonate.

Question 52

Which is the formula for lead(IV) chloride

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

Question 53

The formula for calcium phosphate is

A) CaPO₄.
B) Ca₃(PO₄)₂.
C) Ca₂(PO₄)₃.
D) Ca₃P₂.
E) Ca₃(PO₃)₂.

Question 54

What is the formula for the ionic compound containing iron (III) ions and iodide ions

A) FeI
B) Fe₂I
C) FeI₂
D) FeI₃
E) Fe₃I

Question 55

Which of the following is the formula for hydroiodic acid

A) HIO₄
B) HIO₃
C) HIO₂
D) HIO
E) HI

Question 56

What is the formula for the ionic compound containing calcium ions and oxide ions

A) CaO
B) Ca₂O
C) CaO₂
D) Ca₃O
E) CaO₃

Question 57

Name the compound CuSO₄.

A) Copper (I) sulfate
B) Copper (I) sulfite
C) Copper (II) sulfite
D) Copper (II) sulfate
E) Copper (IV) sulfate

Question 58

The name for NH₄NO₃ is

A) ammonium nitrate.
B) ammonium nitrogen trioxide.
C) ammonia nitrogen oxide.
D) hydrogen nitrogen oxide.
E) hydrogen nitrate.

Question 59

What is the formula for the ionic compound containing sodium ions and nitride ions

A) NaN
B) Na₂N
C) NNa₂
D) Na₃N
E) NNa₃

Question 60

What is the formula for the ionic compound containing barium ions and sulfate ions

A) BaSO₄
B) Ba₂SO₄
C) BaS
D) Ba(SO₄)₂
E) Ba₃S₂

Question 61

Name the compound N₂O₄.

A) nitrous oxide
B) dinitrogen pentoxide
C) nitrogen oxide
D) dinitrogen tetroxide
E) nitrogen tetroxide

Question 62

Name the acid H₂SO₃ (dissolved in water).

A) Sulfuric acid
B) Sulfurous acid
C) Hydrosulfuric acid
D) Persulfuric acid
E) Hyposulfurous acid

Question 63

What type of compound is IF₅

A) Ionic
B) Molecular
C) Acid
D) Base
E) Hydrate

Question 64

The chemical formula for iron(II) nitrate is

A) Fe₂(NO₃)₃.
B)Ir(NO₂)₂.
C) Fe₂N₃.
D) Fe(NO₃)₂.
E) Fe(NO₂)₂.

Question 65

What type of compound is NH₄NO₃

A) Ionic
B) Molecular
C) Acid
D) Base
E) Hydrate

Question 66

Name the compound Co₂(SO₃)₃ .

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

Question 67

Name the compound SO₃.

A) sulfur trioxide
B) sulfate
C) sulfite
D) sulfur trioxygen
E) sulfur oxide

Question 68

What type of compound is HBrO₂

A) Ionic
B) Binary
C) Acid
D) Base
E) Hydrate

Question 69

Name the acid H₃PO₄ (dissolved in water).

A) Phosphoric acid
B) Phosphorous acid
C) Hydrogen phosphate acid
D) Hydrophosphate acid
E) Hydrophosphoric acid

Question 70

Of the following which is NOT a contribution of Marie Curie

A) Discovered two new elements
B) Her scientific studies were awarded a Nobel Prize in chemistry.
C) She discovered the Law of Conservation of Mass.
D) She suggested the term "radioactivity."
E) Her scientific studies were awarded a Nobel Prize in physics.

Question 71

The straight chain hydrocarbon that contains six carbon atoms is

A) propane.
B) butane.
C) pentane.
D) hexane.
E) heptane.

Question 72

Which listing provides the three common types of radiation that can be produced by the decay of radioactive substances like uranium

A) Alpha, beta, pi rays
B) Alpha, beta, gamma rays
C) Delta, beta, gamma rays
D) Delta, beta, pi rays
E) Alpha, sigma, pi rays

Question 73

What is the law of conservation of mass

A) Gravity and mass have the same meaning.
B) Matter can be neither created nor destroyed.
C) Mass can never be changed to energy.
D) Mass and volume will always be equal.
E) Mass can be destroyed but only when it is conserved.

Question 74

What type of compound is NH₃

A) Ionic
B) Ternary
C) Acid
D) Base
E) Hydrate

Question 75

Name the compound Cl₂O₅.

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

Question 76

Name the compound NO₂.

A) mononitrogen dioxygen
B) nitrogen dioxide
C) dinitrogen monoxide
D) nitrogen oxide
E) nitrite

Question 77

What type of compound is NaOH

A) Binary
B) Molecular
C) Acid
D) Base
E) Hydrate

Question 78

What type of compound is Mg(NO₃)₂

A) Ionic
B) Molecular
C) Acid
D) Base
E) Hydrate

Question 79

Name the compound CrO₃.

A) chromium oxide
B) chromium(II) oxide
C) chromium(III) trioxide
D) chromium(III) oxide
E) chromium(VI) oxide

Question 80

What type of compound is H₂SO₃

A) Ionic
B) Binary
C) Acid
D) Base
E) Hydrate