Deck 4: Chemical Bonding: the Ionic Bond Model

Question 1

The Roman numeral III in the name Iron(III) oxide indicates that:

A) There are three times as many Iron atoms present as oxygen atoms.
B) There are three Iron atoms per formula unit.
C) There are three oxygen atoms per formula unit.
D) Iron is present in the form of +3 ions.

Answer 1

Iron is present in the form of +3 ions.

Question 2

Which of the following compounds contains four atoms per formula unit?

A) chromium(III) nitride
B) tin(II) iodide
C) magnesium fluoride
D) ruthenium(III) chloride

Answer 2

ruthenium(III) chloride

Question 3

How many total electrons are present in a N^3- ion?

A) 4
B) 7
C) 10
D) 12

Answer 3

10

Question 4

The correct name for the ionic compound Fe₂Se₃ is

A) iron selenide
B) iron(III) selenide
C) iron triselenide
D) diiron triselenide

Question 5

Formation of a positive ion is the result of an atom

A) losing one or more protons
B) losing one or more electrons
C) gaining one or more protons
D) gaining one or more electrons

Question 6

The "octet rule" relates to the number eight because:

A) Only atoms with eight valence electrons undergo chemical reaction.
B) Ions with charges of +8 and -8 are very stable.
C) Atoms, during compound formation, frequently obtain eight valence electrons.
D) All electron subshells can hold eight electrons.

Question 7

Which of the following statements about polyatomic ions is correct?

A) All have names which end in -ate.
B) All must contain one of the halogens.
C) Negative ions are more common than positive ions.
D) All carry a charge of two.

Question 8

Which of the following ions is not isoelectronic with the noble gas neon?

A) Na⁺
B) F^-
C) C⁴⁺
D) N^3-

Question 9

The formulas of the sulfate ion, the nitrate ion, and the phosphate ion are, respectively,

A) SO₃^2-, NO₃^2-, PO₃^2-
B) SO₄^2-, NO₄^2-, PO₄^2-
C) SO₄^2-, NO₃^-, PO₄^2-
D) SO₄^2-, NO₃^-, PO₄^3-

Question 10

Which of the following statements is an accurate description of the structure of the ionic compound LiBr?

A) Alternating layers of Li and Br atoms are present.
B) Clusters of Li⁺ ions are balanced out by clusters of Br^- ions.
C) Individual molecules containing a Li⁺ ion and a Br^- ion are present.
D) Each cation present is surrounded by six anions in an extended array.

Question 11

The correct formula for the ionic compound containing Tl³⁺ and Te^2- ions would be

A) TlTe
B) Tl₃Te₂
C) Tl₂Te₃
D) Tl₂Te

Question 12

For representative elements, valence electrons are those electrons located

A) closest to the nucleus
B) in the outermost subshell
C) in the outermost shell
D) in s orbitals

Question 13

In which of the following pairs of compounds are both members of the pair ionic compounds?

A) PI₃ and HBr
B) H₂S and NCl₃
C) LiF and H₂O
D) LiI and NiO

Question 14

The correct name for the ionic compound Al₂Se₃ is

A) aluminum selenide
B) aluminum(III) selenide
C) aluminum triselenide
D) dialuminum triselenide

Question 15

In which of the following ionic compounds are ions with a +1 charge present?

A) Li₂Se
B) Al₂Te₃
C) Mg₂Si
D) SrO

Question 16

Elements in groups IA and VIIA of the periodic table possess, respectively, how many valence electrons?

A) 1 and 1
B) 1 and 7
C) 7 and 1
D) 8 and 8

Question 17

The correct formula for the ionic compound that might be formed between Na and As is

A) Na₃As
B) NaAs₃
C) Na₂As₃
D) Na₃As₂

Question 18

Elements in groups IIA and VIIA of the periodic table would, respectively, be expected to form ions with charges of

A) +2 and +7
B) -2 and -7
C) +2 and +1
D) +2 and -1

Question 19

How many electrons appear in the Lewis symbol for an element whose electron configuration is 1s²2s²2p⁴?

A) 2
B) 4
C) 6
D) 8

Question 20

Which one of the following compounds has a formula that contains parentheses?

A) barium carbonate
B) lithium hydroxide
C) strontium hydroxide
D) ammonium hydroxide

Question 21

In which of the following pairs of ions are the two members of the pair isoelectronic?

A) S^2- and Cl^-
B) Na⁺ and K⁺
C) Al³⁺ and N^3-
D) more than one correct response
E) no correct response

Question 22

Which of the following pairings of compound name and compound formula is incorrect?

A) sodium acetate - NaC₂H₃O₂
B) barium sulfate - BaSO₄
C) magnesium nitrate - MgNO₃
D) more than one correct response
E) no correct response

Question 23

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) If an atom loses one or more electrons, it becomes negatively charged because protons now outnumber electrons.
(2) Nitrogen, a group VA element, possesses five valence electrons.
(3) Polyatomic ions are generally not very stable and usually lose their identity during chemical reactions.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 24

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) Representative elements in the same group of the periodic table have the same number of valence electrons.
(2) Discrete molecules do not exist in ionic compounds.
(3) A sulfate ion has one less oxygen than a sulfite ion.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 25

The mechanism for ionic bond formation always involves the transferring of

A) electrons from nonmetallic atoms to metallic atoms
B) protons from the nucleus of metallic atoms to the nucleus of nonmetallic atoms
C) sufficient electrons to produce ions of equal but opposite charge
D) more than one correct response
E) no correct response

Question 26

In which of the following pairs of ionic compounds do both members of the pair contain +1 ions?

A) KCl and CaO
B) Na₃N and Li₂S
C) AlCl₃ and MgF₂
D) more than one correct response
E) no correct response

Question 27

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) Ionic bonds result from the sharing of one or more pairs of electrons.
(2) The compound copper(II) phosphate contains eight oxygen atoms per formula unit.
(3) Ionic compounds that contain fixed charge metals cannot contain polyatomic ions.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 28

Which of the following elements would be expected to form a monoatomic ion with a charge of +2?

A) oxygen
B) sulfur
C) magnesium
D) more than one correct response
E) no correct response

Question 29

For which of the following elements is the listed number of valence electrons correct?

A) Al - 3 valence electrons
B) Cl - 5 valence electrons
C) Si - 2 valence electrons
D) more than one correct response
E) no correct response

Question 30

Which of the following compounds contain more than 10 atoms per formula unit?

A) ammonium phosphate
B) aluminum carbonate
C) iron(III) cyanide
D) more than one correct response
E) no correct response

Question 31

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) An atom with the electron configuration 1s²2s²2p² possesses two valence electrons.
(2) The formula of the ionic compounds that contains Ba²⁺ and N^3- ions is Ba₂N₃.
(3) The polyatomic ions nitrate and azide are both tetraatomic entities.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 32

Which of the following pairings of compound name and compound formula is incorrect?

A) sodium oxide - Na₂O
B) magnesium sulfide - MgS₂
C) potassium chloride - KCl
D) more than one correct response
E) no correct response

Question 33

Which of the following ionic compounds would have a name that contains the Roman numeral III?

A) AlCl₃
B) FeBr₃
C) Cu₃N
D) more than one correct response
E) no correct response

Question 34

In which of the following compounds is there a one-to-two ratio between positive and negative ions?

A) calcium sulfide
B) magnesium bromide
C) lead(IV) oxide
D) more than one correct response
E) no correct response

Question 35

Which of the following is an incorrect statement about the number of electrons lost or gained by a representative element during ion formation?

A) The number is usually three or less.
B) The number is governed by the octet rule.
C) The number is related to the position of the element in the periodic table.
D) More than one correct response.
E) No correct response.

Question 36

In which of the following pairs of polyatomic ions do both members of the pair have the same charge?

A) sulfate and phosphate
B) carbonate and hydroxide
C) ammonium and nitrate
D) more than one correct response
E) no correct response

Question 37

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) All ionic compounds that contain metal ions have names that contain Roman numerals.
(2) Ionic compounds tend to have high melting points and tend to be good conductors of electricity when in the molten state.
(3) Three ions are present in one formula unit of a compound that contains Na⁺ and O^2- ions.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 38

In the formation of which of the following ionic compounds is the number of electrons transferred per formula unit equal to three?

A) AlN
B) K₃N
C) BaCl₂
D) more than one correct response
E) no correct response

Question 39

Which of the following elements would have a Lewis symbol that contains five electrons?

A) nitrogen
B) fluorine
C) phosphorus
D) more than one correct response
E) no correct response

Question 40

In which of the following pairings is the chemical formula not consistent with the ions shown?

A) M²⁺, X^3-, M₃X₂
B) M²⁺, X^-, MX₂
C) M⁺, X^3-, MX₃
D) more than one correct response
E) no correct response

Question 41

For the electron configuration 1s²2s²2p⁶3s¹, choose the appropriate number of valence electrons present from the response list.

A) 1 valence electron
B) 3 valence electrons
C) 5 valence electrons
D) 7 valence electrons

Question 42

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) The most abundant ion in hard water is usually Na⁺.
(2) Fresh water purified for drinking purposes contains no ions.
(3) Tooth enamel contains both monatomic and polyatomic ions.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 43

For a group Group VA element, choose the appropriate number of valence electrons present from the response list.

A) 1 valence electron
B) 3 valence electrons
C) 5 valence electrons
D) 7 valence electrons

Question 44

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) The octet rule is used to determine the number of valence electrons an atom possesses.
(2) The formula for the compound sodium carbonate contains parenthesis.
(3) Group IIA and VIA elements form ions that carry two units of charge.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 45

Choose a formula from the response list with where the positive and negative ions present carry the same amount of charge.

A) K₃N
B) AlF₃
C) CaSO₄
D) (NH₄)₂S

Question 46

For the ion or element combinations of M³⁺ and X^2-, choose the correct formula for the compound produced.

A) MX
B) M₂X
C) MX₂
D) M₂X₃

Question 47

For the ion or element combinations of M²⁺ and X^2-, choose the correct formula for the compound produced.

A) MX
B) M₂X
C) MX₂
D) M₂X₃

Question 48

For the electron configuration 1s²2s²2p⁶3s²3p⁵, choose the appropriate number of valence electrons present from the response list.

A) 1 valence electron
B) 3 valence electrons
C) 5 valence electrons
D) 7 valence electrons

Question 49

Choose a formula from the response list with -2 charged monoatomic ions present.

A) K₃N
B) AlF₃
C) CaSO₄
D) (NH₄)₂S

Question 50

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) Calcium sulfide is a compound in which both types of ions present have the same electron configuration, that of the noble gas argon.
(2) The charge on the positive ions present in the compound Al₂S₃ is +3.
(3) The polyatomic ions ammonium and cyanide do not contain oxygen.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 51

For the ion or element combinations of M²⁺ and X^-, choose the correct formula for the compound produced.

A) MX
B) M₂X
C) MX₂
D) M₂X₃

Question 52

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) The ions O^2- and S^2- are isoelectronic.
(2) The symbol for an atom of X that has lost two electrons is X^2-.
(3) In all ionic compounds the total charge of the ions present per formula unit must add up to zero.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 53

Choose a formula from the response list with +1 charged monoatomic ions present.

A) K₃N
B) AlF₃
C) CaSO₄
D) (NH₄)₂S

Question 54

Choose the correct formula of the compound formed when M, which has two valence electrons and X, which has seven valence electrons are combined.

A) MX
B) M₂X
C) MX₂
D) M₂X₃

Question 55

Choose a formula from the response list where two ions are present per formula unit.

A) K₃N
B) AlF₃
C) CaSO₄
D) (NH₄)₂S

Question 56

For the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³, choose the appropriate number of valence electrons present from the response list.

A) 1 valence electron
B) 3 valence electrons
C) 5 valence electrons
D) 7 valence electrons

Question 57

Choose a formula from the response list where a greater number of negative ions are present than positive ions.

A) K₃N
B) AlF₃
C) CaSO₄
D) (NH₄)₂S

Question 58

For an element with the Lewis symbol , choose the appropriate number of valence electrons present from the response list.

A) 1 valence electron
B) 3 valence electrons
C) 5 valence electrons
D) 7 valence electrons

Question 59

Choose the correct formula of the compound formed when M, which is a group IIIA element and X, which is a group VIA element are combined.

A) MX
B) M₂X
C) MX₂
D) M₂X₃

Question 60

Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) The number of valence electrons possessed by an atom can never exceed four.
(2) Binary ionic compounds containing two nonmetals do not occur.
(3) The name of the ionic compound Cu₂S is copper(II) sulfide.

A) All three statements are true.
B) Two of the three statements are true.
C) Only one of the statements is true.
D) None of the statements is true.

Question 61

Choose the polyatomic ion that contains three oxygen atoms.

A) hydroxide ion
B) ammonium ion
C) nitrate ion
D) sulfate ion

Question 62

Choose the appropriate number of atoms contained in a formula unit of sodium oxide.

A) two atoms per formula unit
B) three atoms per formula unit
C) four atoms per formula unit
D) five or more atoms per formula unit

Question 63

Choose the polyatomic ion that contains a total of four atoms.

A) hydroxide ion
B) ammonium ion
C) nitrate ion
D) sulfate ion

Question 64

Choose the appropriate number of atoms contained in a formula unit of calcium chloride.

A) two atoms per formula unit
B) three atoms per formula unit
C) four atoms per formula unit
D) five or more atoms per formula unit

Question 65

Choose the appropriate number of atoms contained in a formula unit of aluminum phosphate.

A) two atoms per formula unit
B) three atoms per formula unit
C) four atoms per formula unit
D) five or more atoms per formula unit

Question 66

Choose the appropriate number of atoms contained in a formula unit of iron(II) hydroxide.

A) two atoms per formula unit
B) three atoms per formula unit
C) four atoms per formula unit
D) five or more atoms per formula unit

Question 67

Choose the polyatomic ion that contains one hydrogen atom.

A) hydroxide ion
B) ammonium ion
C) nitrate ion
D) sulfate ion

Question 68

Choose the polyatomic ion that has a negative two charge.

A) hydroxide ion
B) ammonium ion
C) nitrate ion
D) sulfate ion

Question 69

Choose the appropriate number of atoms contained in a formula unit of copper(I) sulfide.

A) two atoms per formula unit
B) three atoms per formula unit
C) four atoms per formula unit
D) five or more atoms per formula unit

Question 70

Choose the polyatomic ion that contains the elements nitrogen and hydrogen.

A) hydroxide ion
B) ammonium ion
C) nitrate ion
D) sulfate ion