Deck 12: Chemical Bonding

Question 1

What is the term for the ability of an atom in a chemical bond to attract a shared electron pair?

A)delta value
B)dipole
C)electronegativity
D)polar attraction
E)none of the above

Answer 1

electronegativity

Question 2

What is the term for the valence electrons in a molecule that are not shared?

A)bonding electrons
B)core electrons
C)kernel electrons
D)nonbonding electrons
E)none of the above

Answer 2

nonbonding electrons

Question 3

What is the term for the attraction between a H atom bonded to O or N,and a nonbonding electron pair on an electronegative atom in another molecule?

A)dipole force
B)dispersion force
C)hydrogen bond
D)intermolecular bond
E)none of the above

Answer 3

hydrogen bond

Question 4

What is the term for the geometric shape formed by bonding and nonbonding electron pairs surrounding the central atom in a molecule?

A)bonding geometry
B)electron pair geometry
C)molecular geometry
D)VSEPR geometry
E)none of the above

Question 5

What is the term for the smallest representative particle in a compound held together by covalent bonds?

A)formula unit
B)molecule
C)monoatomic ion
D)polyatomic ion
E)none of the above

Question 6

What is the term for the angle formed by two atoms bonded to the central atom in a molecule?

A)atomic angle
B)bond angle
C)central angle
D)molecular angle
E)none of the above

Question 7

What is the term for the amount of energy required to break a covalent bond between two atoms?

A)atomic energy
B)bond energy
C)molecular energy
D)thermodynamic energy
E)none of the above

Question 8

What is the term for the geometric shape formed by the atoms bonded to the central atom in a molecule?

A)atomic shape
B)bonding shape
C)molecular shape
D)VSEPR shape
E)none of the above

Question 9

What is the term for a bond composed of two electron pairs shared between two atoms?

A)single bond
B)double bond
C)triple bond
D)electrovalent bond
E)none of the above

Question 10

What is the term for a method of indicating the partial positive and partial negative charge in a polar bond?

A)delta notation
B)partial notation
C)polar notation
D)valence notation
E)none of the above

Question 11

What is the term for the valence electrons in a molecule that are shared?

A)bonding electrons
B)core electrons
C)kernel electrons
D)nonbonding electrons
E)none of the above

Question 12

What is the term for the distance between the nuclei of two atoms that are held together by a covalent bond?

A)atomic length
B)bond length
C)interatomic distance
D)nuclear distance
E)none of the above

Question 13

What is the term for a bond where an electron pair is shared but both electrons have been donated by one atom?

A)coordinate covalent bond
B)ionic bond
C)nonpolar bond
D)polar bond
E)none of the above

Question 14

What is the term for the attraction between positive and negative ions,or two nonmetal atoms?

A)chemical bond
B)electron bond
C)ion bond
D)valence bond
E)none of the above

Question 15

What is the term for a molecule composed of two nonmetal atoms held together by a covalent bond?

A)diatomic molecule
B)nonmetal molecule
C)nonpolar molecule
D)polar molecule
E)none of the above

Question 16

What is the term for the bond resulting from the attraction between a positively charged cation and a negatively charged anion?

A)coordinate covalent bond
B)ionic bond
C)nonpolar bond
D)polar bond
E)none of the above

Question 17

What is the term for the smallest representative particle in a compound held together by ionic bonds?

A)formula unit
B)molecule
C)monoatomic ion
D)polyatomic ion
E)none of the above

Question 18

What is the term for a single atom that has a negative or a positive charge as the result of gaining or losing valence electrons?

A)ion
B)monoatomic ion
C)polyatomic ion
D)valence ion
E)none of the above

Question 19

What is the term for a bond resulting from the sharing of one or more pairs of valence electrons between two nonmetal atoms?

A)covalent bond
B)electrovalent bond
C)ionic bond
D)valence bond
E)none of the above

Question 20

What is the term for a diagram of a molecule that shows the chemical symbol of each atom and a dot representing each bonding and nonbonding electron?

A)chemical formula
B)electron dot formula
C)molecular formula
D)structural formula
E)none of the above

Question 21

What is the term for a model that explains the shapes of molecules based upon electron pair repulsion about the central atom?

A)bonding theory
B)molecular theory
C)nonbonding theory
D)VSEPR theory
E)none of the above

Question 22

What is the term for a bond in which a pair of electrons is shared equally?

A)coordinate covalent bond
B)electrovalent bond
C)nonpolar bond
D)polar bond
E)none of the above

Question 23

What is the term for a group of atoms held together by covalent bonds that bears an overall negative or positive charge?

A)formula unit
B)molecule
C)monoatomic ion
D)polyatomic ion
E)none of the above

Question 24

What is the term for the statement that an atom tends to bond in such a way so as to acquire eight valence electrons?

A)atomic rule
B)bonding rule
C)electron rule
D)octet rule
E)none of the above

Question 25

What is the term for a bond composed of three electron pairs shared between two atoms?

A)single bond
B)double bond
C)triple bond
D)electrovalent bond
E)none of the above

Question 26

Predict which of the following has an ionic bond.

A)ICl
B)IBr
C)HI
D)all of the above
E)none of the above

Question 27

Predict which of the following has a covalent bond.

A)CaS
B)CdS
C)CoS
D)all of the above
E)none of the above

Question 28

Predict which of the following has a covalent bond.

A)ICl
B)BrF
C)HBr
D)all of the above
E)none of the above

Question 29

What is the term for a bond in which a pair of electrons is not shared equally?

A)coordinate covalent bond
B)electrovalent bond
C)nonpolar bond
D)polar bond
E)none of the above

Question 30

Predict which of the following has a covalent bond.

A)CH₄
B)HCl
C)NH₃
D)all of the above
E)none of the above

Question 31

What is the term for a bond composed of one electron pair shared between two atoms?

A)double bond
B)electrovalent bond
C)ionic bond
D)single bond
E)none of the above

Question 32

Predict which of the following has an ionic bond.

A)AlCl3
B)Cu2S
C)FeF3
D)all of the above
E)none of the above

Question 33

Predict which of the following has a covalent bond.

A)CoO
B)NO
C)ZnO
D)all of the above
E)none of the above

Question 34

Predict which of the following has an ionic bond.

A)HI
B)IBr
C)LiH
D)all of the above
E)none of the above

Question 35

Predict which of the following has an ionic bond.

A)CaO
B)FeO
C)SnO
D)all of the above
E)none of the above

Question 36

What is the term for a diagram of a molecule that shows the chemical symbol of each atom and a dash representing each pair of bonding electrons?

A)chemical formula
B)electron dot formula
C)molecular formula
D)structural formula
E)none of the above

Question 37

Predict which of the following has an ionic bond.

A)H₂O
B)H₂S
C)H₂Se
D)all of the above
E)none of the above

Question 38

What is the term for the electrons in the outermost s and p sublevels of an atom that undergo reaction and form chemical bonds?

A)s electrons
B)p electrons
C)bonding electrons
D)valence electrons
E)none of the above

Question 39

Predict which of the following has a covalent bond.

A)NaCl
B)KCl
C)HCl
D)all of the above
E)none of the above

Question 40

Predict which of the following has an ionic bond.

A)CO₂
B)SnO₂
C)SO₃
D)all of the above
E)none of the above

Question 41

Which noble gas is isoelectronic with a lithium ion?

A)helium
B)neon
C)argon
D)krypton
E)xenon

Question 42

Which of the following anions is isoelectronic with neon?

A)fluoride ion
B)oxide ion
C)nitride ion
D)all of the above
E)none of the above

Question 43

Which noble gas is isoelectronic with an aluminum ion?

A)helium
B)neon
C)argon
D)krypton
E)xenon

Question 44

Which of the following anions is isoelectronic with argon?

A)nitride ion
B)sulfide ion
C)bromide ion
D)all of the above
E)none of the above

Question 45

Which noble gas is isoelectronic with a nitride ion?

A)helium
B)neon
C)argon
D)krypton
E)xenon

Question 46

Which of the following cations is isoelectronic with argon?

A)potassium ion
B)calcium ion
C)scandium ion
D)all of the above
E)none of the above

Question 47

Which of the following cations is isoelectronic with neon?

A)sodium ion
B)magnesium ion
C)aluminum ion
D)all of the above
E)none of the above

Question 48

Which noble gas is isoelectronic with a calcium ion?

A)helium
B)neon
C)argon
D)krypton
E)xenon

Question 49

Which of the following anions is isoelectronic with krypton?

A)chloride ion
B)sulfide ion
C)phosphide ion
D)all of the above
E)none of the above

Question 50

How many valence electrons are in a sulfur atom and a sulfide ion?

A)2 and 8,respectively
B)6 and 8,respectively
C)8 and 6,respectively
D)16 and 18,respectively
E)none of the above

Question 51

Which noble gas is isoelectronic with a sulfide ion?

A)helium
B)neon
C)argon
D)krypton
E)xenon

Question 52

Which of the following cations is isoelectronic with krypton?

A)potassium ion
B)calcium ion
C)scandium ion
D)all of the above
E)none of the above

Question 53

Which of the following statements is true regarding an ionic bond?

A)Metal atoms lose electrons and nonmetal atoms gain electrons.
B)An ionic bond is the attraction between a metal ion and a nonmetal ion.
C)The ionic radius of a metal ion is less than its atomic radius.
D)Breaking an ionic bond between two ions requires energy.
E)all of the above

Question 54

How many valence electrons are in a phosphorus atom and a phosphide ion?

A)3 and 8,respectively
B)5 and 8,respectively
C)8 and 5,respectively
D)15 and 18,respectively
E)none of the above

Question 55

How many valence electrons are in a chlorine atom and a chloride ion?

A)1 and 8,respectively
B)7 and 8,respectively
C)8 and 7,respectively
D)17 and 18,respectively
E)none of the above

Question 56

How many valence electrons are in a nitrogen atom and a nitride ion?

A)3 and 8,respectively
B)5 and 8,respectively
C)8 and 5,respectively
D)7 and 10,respectively
E)none of the above

Question 57

Predict which of the following has a covalent bond.

A)KI
B)LiCl
C)NaBr
D)all of the above
E)none of the above

Question 58

How many valence electrons are in a fluorine atom and a fluoride ion?

A)1 and 8,respectively
B)7 and 8,respectively
C)8 and 7,respectively
D)9 and 10,respectively
E)none of the above

Question 59

Which noble gas is isoelectronic with a bromide ion?

A)helium
B)neon
C)argon
D)krypton
E)xenon

Question 60

How many valence electrons are in an oxygen atom and an oxide ion?

A)2 and 8,respectively
B)6 and 8,respectively
C)8 and 6,respectively
D)8 and 10,respectively
E)none of the above

Question 61

Which of the following statements is true regarding a covalent bond?

A)Valence electrons are transferred between nonmetal atoms.
B)The bond length is equal to the sum of the two atomic radii.
C)Breaking a covalent bond between two atoms releases energy.
D)all of the above
E)none of the above

Question 62

Which of the following statements is true regarding an ionic bond in MgO?

A)Magnesium atoms gain electrons and oxygen atoms lose electrons.
B)Magnesium and oxygen bond by sharing electrons.
C)The ionic radius of an oxide ion is greater than its atomic radius.
D)Forming an ionic bond between Mg₂+ and O₂- requires energy.
E)none of the above

Question 63

Draw the electron dot formula for hydrogen chloride,HCl.How many nonbonding electron pairs are in a hydrogen chloride molecule?

A)1
B)2
C)3
D)4
E)none of the above

Question 64

What is the total number of valence electrons in one molecule of N₂H₄?

A)2
B)8
C)14
D)18
E)none of the above

Question 65

Which of the following statements is true regarding a covalent bond?

A)Valence electrons are shared between two nonmetal atoms.
B)The bond length is less than the sum of the two atomic radii.
C)Breaking a covalent bond between two atoms requires energy.
D)all of the above
E)none of the above

Question 66

Draw the electron dot formula for silicon tetrabromide,SiBr4.How many nonbonding electron pairs are in a silicon tetrabromide molecule?

A)1
B)2
C)4
D)12
E)none of the above

Question 67

Which of the following statements is true regarding an ionic bond in FeS?

A)Iron atoms gain electrons and sulfur atoms lose electrons.
B)Iron and sulfur ions bond by electrostatic attraction.
C)The ionic radius of an iron ion is equal to its atomic radius.
D)Breaking an ionic bond between Fe₂+ and S₂- releases energy.
E)none of the above

Question 68

Draw the electron dot formula for water,H₂O.How many nonbonding electron pairs are in a water molecule?

A)1
B)2
C)3
D)4
E)none of the above

Question 69

What is the total number of valence electrons in one molecule of B2H₆?

A)6
B)8
C)12
D)16
E)none of the above

Question 70

Which of the following statements is true regarding a covalent bond in NO?

A)Valence electrons are transferred from nitrogen to oxygen.
B)Bonding electrons are delocalized in the NO molecule.
C)The bond length is greater than the sum of the two atomic radii .
D)all of the above
E)none of the above

Question 71

Which of the following statements is true regarding a covalent bond in HF?

A)Valence electrons are transferred to the fluorine atom.
B)The bond length is less than the sum of the two atomic radii.
C)Breaking the bond between H-F releases energy.
D)all of the above
E)none of the above

Question 72

Which of the following statements is true regarding a covalent bond in CO?

A)Valence electrons are transferred to the oxygen atom.
B)Bonding electrons are stationary in the CO molecule.
C)The bond length is less than the sum of the two atomic radii.
D)all of the above
E)none of the above

Question 73

Draw the electron dot formula for methane,CH₄.How many nonbonding electron pairs are in a methane molecule?

A)0
B)1
C)4
D)6
E)none of the above

Question 74

What is the total number of valence electrons in one molecule of H₂O₂?

A)2
B)8
C)14
D)18
E)none of the above

Question 75

Draw the electron dot formula for ammonia,NH₃.How many nonbonding electron pairs are in an ammonia molecule?

A)1
B)2
C)3
D)6
E)none of the above

Question 76

What is the total number of valence electrons in one molecule of P2O₃?

A)2
B)11
C)18
D)28
E)none of the above

Question 77

Which of the following statements is true regarding a covalent bond in HCl?

A)Valence electrons are shared between the hydrogen and chlorine atoms.
B)The bond length is equal to the sum of the two atomic radii.
C)Breaking the bond between H-Cl releases energy.
D)all of the above
E)none of the above

Question 78

What is the total number of valence electrons in one molecule of N₂O₃?

A)2
B)11
C)18
D)28
E)none of the above

Question 79

What is the total number of valence electrons in one molecule of S₂Cl₂?

A)13
B)18
C)20
D)26
E)none of the above

Question 80

Draw the electron dot formula for chloroform,CHCl3.How many nonbonding electron pairs are in a chloroform molecule?

A)1
B)3
C)4
D)9
E)none of the above