Deck 6: Ionic and Molecular Compounds

Question 1

How many electrons will lithium gain or lose when it forms an ion?

A)lose 1
B)lose 3
C)lose 2
D)gain 5
E)gain 1

Answer 1

lose 1

Question 2

In ionic compounds, ________ lose their valence electrons to form positively charged ________.

A)nonmetals; anions
B)metals; anions
C)metals; polyatomic ions
D)nonmetals; cations
E)metals; cations

Answer 2

metals; cations

Question 3

What is the ionic charge of an ion with 13 protons and 10 electrons?

A)3-
B)2+
C)2-
D)3+
E)1+

Answer 3

3+

Question 4

An anion always

A)has a negative charge.
B)contains a metal and a nonmetal.
C)has a positive charge.
D)forms covalent bonds.
E)contains a group of two or more atoms with a positive charge.

Question 5

How many valence electrons are in the electron-dot structure for an element in group 3A (13)?

A)1
B)2
C)3
D)4
E)6

Question 6

Elements in group 2A (2)of the periodic table form ions with a charge of

A)1+.
B)1-.
C)2+.
D)0.
E)3+.

Question 7

In an electron-dot structure of an element, the dots are used to represent

A)the electron arrangement.
B)the electrons that the element will gain when it forms a compound.
C)all of the electrons in the atom.
D)only the electrons that will participate in bond formation.
E)the valence electrons.

Question 8

How many valence electrons does carbon have?

A)one
B)two
C)three
D)four
E)five

Question 9

To form an ion, a sodium atom

A)gains two electrons.
B)gains one electron.
C)loses two electrons.
D)loses seven electrons.
E)loses one electron.

Question 10

What is the symbol for the ion with 19 protons and 18 electrons?

A)
B)
C)
D)
E)

Question 11

How many valence electrons does nitrogen have?

A)one
B)two
C)three
D)four
E)five

Question 12

What is the formula of the nitride ion?

A)
B)
C)
D)
E)

Question 13

How many electrons will aluminum gain or lose when it forms an ion?

A)gain 1
B)lose 3
C)lose 1
D)gain 5
E)lose 2

Question 14

What is the correct formula for the oxide ion?

A)
B)
C)
D)
E)

Question 15

The number of electrons in an ion with 20 protons and an ionic charge of 2+ is

A)22.
B)20.
C)18.
D)24.
E)16.

Question 16

How many electrons will chlorine gain or lose when it forms an ion?

A)lose 7
B)lose 3
C)gain 1
D)gain 2
E)lose 1

Question 17

The ion of aluminum is

A)
B)
C)
D)
E)

Question 18

The number of valence electrons found in an atom of a Group A element is equal to

A)its atomic number.
B)its mass number.
C)eight minus the group number.
D)eight.
E)its group number.

Question 19

The octet rule indicates that

A)all of the shells in an atom hold a maximum of eight electrons.
B)all of the Group A elements have eight valence electrons.
C)atoms lose, gain, or share valence electrons to have eight valence electrons.
D)all of the noble gases have eight total electrons.
E)the noble gases react with other compounds to get eight valence electrons.

Question 20

Valence electrons are electrons located

A)in the nucleus of an atom.
B)in the outermost energy level of an atom.
C)in the first three shells of an atom.
D)in the innermost energy level of an atom.
E)throughout the atom.

Question 21

Which one of the following elements forms two or more ions with different ionic charges?

A)K
B)F
C)O
D)Ca
E)Fe

Question 22

The formula of copper(I) sulfide is

A)
B)
C)
D)
E) Cu₂(So₄)₃

Question 23

What is the correct formula for iron(III) sulfide?

A)
B)
C)
D)
E)

Question 24

The name of is

A) dialuminum trisulfide.
B) aluminum(III) sulfate.
C) dialuminum sulfate.
D) dialuminum trisulfate.
E) aluminum sulfate.

Question 25

Which one of the following compounds contains an ion with a 3+ charge?

A)
B)
C) KCI
D)
E)

Question 26

The name of is

A) sulfur(I) chloride.
B) silver(I) chloride.
C) gold(I) chloride.
D) silver(II) chloride.
E) silver chloride.

Question 27

Which of the following polyatomic ions has a positive charge?

A)hydroxide
B)sulfate
C)hydrogen carbonate
D)nitrate
E)ammonium

Question 28

The correct formula for the compound formed from Mg and S is

A)
B)
C)
D)
E)

Question 29

The compound is named

A) dimagnesium chloride.
B) magnesium chloride.
C) magnesium chlorine.
D) magnesium dichloride.
E) magnesium(II) chloride.

Question 30

An ionic compound

A)has a net negative charge.
B)has a net charge of zero.
C)contains only cations.
D)has a net positive charge.
E)contains only anions.

Question 31

A group of covalently bonded atoms that has an overall ionic charge is called a(n)

A)molecule.
B)polyatomic ion.
C)anion.
D)ionic compound.
E)cation.

Question 32

is called

A) iron(III) sulfate.
B) iron(II) sulfate.
C) iron trisulfate.
D) iron sulfate.
E) diiron trisulfate.

Question 33

The name of the HSO4- ion is

A)sulfate.
B)hydrogen sulfite.
C)sulfite.
D)sulfide.
E)hydrogen sulfate.

Question 34

The name of the ion is

A) copper(I).
B) cobalt.
C) copper(II).
D) copper.

Question 35

The name of is

A) lead(II) oxide.
B) lead dioxide.
C) plumbum oxide.
D) lead(IV) oxide.
E) lead oxygen.

Question 36

What is the formula of a compound that contains ions?

A)
B)
C)
D)
E)

Question 37

What is the correct formula for the iron(II) ion?

A)
B)
C)
D)
E)

Question 38

How many electrons will iodine gain or lose when it forms an ion?

A)gain 1
B)lose 2
C)lose 1
D)lose 3
E)gain 5

Question 39

What is the formula for aluminum nitrite?

A)
B)
C)
D)
E)

Question 40

The correct formula for a compound formed from the elements Al and O is

A)
B)
C)
D) AlO.
E)

Question 41

How many valence electrons are in the Lewis structure of

A) 8
B) 2
C) 6
D) 10
E) 4

Question 42

Which of the following elements does NOT exist as a diatomic molecule?

A)hydrogen
B)nitrogen
C)carbon
D)oxygen
E)chlorine

Question 43

The formula for a molecule formed from N and Cl would be

A)
B)
C)
D)
E)

Question 44

A)nitrogen trioxide.
B)dinitride trioxide.
C)dinitrogen trioxide.
D)dinitrogen oxide.
E)nitrogen oxide.

Question 45

The correct name of the compound is

A) trinitrogen chloride.
B) nitrogen chloride.
C) nickel chloride.
D) nitrogen trichloride.
E) nitrogen(III) chloride.

Question 46

How many valence electrons are in the Lewis structure of

A) 6
B) 0
C) 32
D) 8
E) 82

Question 47

The correct name for the compound is

A) triiodine trifluoride
B) fluorine iodide.
C) triiodine fluoride.
D) iodine fluoride.
E) iodine trifluoride.

Question 48

Choose the most complete Lewis structure for

A)

B)

C)

D)

E)

Question 49

Which of the following substances contains a nonpolar covalent bond?

A)
B)
C)
D)
E)

Question 50

The ability of an atom to attract the shared electrons in a covalent bond is its

A)nonpolarity.
B)ionic character.
C)electronegativity.
D)bonding ability.
E)polarity.

Question 51

Which of the following polyatomic ions has a 3- ionic charge?

A)phosphate
B)hydroxide
C)sulfate
D)nitrate
E)bicarbonate

Question 52

The types of compounds that use prefixes in their names are

A)ionic compounds.
B)compounds that contain polyatomic ions.
C)polyatomic ions.
D)covalent compounds.
E)ionic compounds involving transition metals.

Question 53

Double and triple bonds form because

A)one of the atoms in the molecule has more than eight valence electrons.
B)the atoms involved have high electronegativities.
C)there is at least one hydrogen atom involved in the bond.
D)the ions involved have charges larger than one.
E)single covalent bonds do not give all of the atoms in the molecule an octet of electrons.

Question 54

In a molecule with covalent bonding,

A)atoms of metals form bonds to atoms of nonmetals.
B)atoms of different metals form bonds.
C)atoms of noble gases are held together by attractions between oppositely charged ions.
D)atoms are held together by sharing electrons.
E)oppositely charged ions are held together by strong electrical attractions.

Question 55

A(n)________ is the smallest unit of two or more atoms held together by a covalent bond.

A)ionic compound
B)unit
C)nucleus
D)molecule
E)formula

Question 56

In a covalently bonded molecule, the number of electrons that an atom shares with others is usually equal to the number of electrons

A)in the atom.
B)needed to give it a stable electron configuration.
C)in its nucleus.
D)in all the atoms.
E)in its ion.

Question 57

What is the formula of carbon tetraiodide?

A)
B)
C)
D)
E)

Question 58

Choose the best Lewis structure for

A)
B)
C)
D)
E)

Question 59

How many lone pairs of electrons are in the Lewis structure of

A) 0
B) 1
C) 2
D) 3
E) 4

Question 60

What is the name of ?

A) chromium(III) nitrite
B) chromium trinitrate
C) chromium nitrate
D) chromium(III) nitrate
E) chromium trinitrite

Question 61

Ionic bonding is expected in which of these compounds?

A)
B)
C)
D)
E)

Question 62

Which of the following elements has the lowest electronegativity?

A)N
B)F
C)O
D)C
E)Li

Question 63

The strongest interactions between molecules of ammonia, are

A) polar covalent.
B) ionic bonds.
C) dispersion forces.
D) dipole-dipole attractions.
E) hydrogen bonds.

Question 64

The carbon tetrachloride molecule, is

A) a polar molecule with ionic bonds.
B) a polar molecule with nonpolar bonds.
C) a nonpolar molecule with nonpolar bonds.
D) a nonpolar molecule with polar bonds.
E) a polar molecule with polar bonds.

Question 65

The shape of the water molecule is

A) tetrahedral.
B) linear.
C) trigonal pyramidal.
D) octagonal.
E) bent.

Question 66

The VSEPR theory allows us to determine the most favorable

A)bond type for a molecule.
B)charge on an ion.
C)three-dimensional shape of a molecule.
D)color of a compound.
E)formula for a compound.

Question 67

The ammonia molecule, is

A) a nonpolar molecule with nonpolar bonds.
B) a polar molecule with ionic bonds.
C) a polar molecule with polar bonds.
D) a nonpolar molecule with polar bonds.
E) a polar molecule with nonpolar bonds.

Question 68

The strongest interactions between molecules of hydrogen chloride are

A)ionic bonds.
B)covalent bonds.
C)hydrogen bonds.
D)dipole-dipole attractions.
E)dispersion forces.

Question 69

Hydrogen sulfide, has a shape similar to

A) carbon dioxide.
B) carbon tetrachloride.
C) water.
D) carbon monoxide.
E) hydrogen chloride.

Question 70

Which of the following compounds contains a polar covalent bond?

A)
B)
C)
D)
E)

Question 71

Which of the following compounds contains an ionic bond?

A)
B)
C)
D)
E)

Question 72

The shape of the ammonia molecule is

A) linear.
B) hexagonal.
C) square.
D) octagonal.
E) trigonal pyramidal.

Question 73

The water molecule has a dipole with the negative portion

A)pointing from the oxygen through the hydrogen atoms.
B)localized between the hydrogen atoms.
C)localized on one of the hydrogens.
D)pointing toward the oxygen atom.
E)surrounding the molecule.

Question 74

The strongest interactions between molecules of hydrogen, are

A) dispersion forces.
B) hydrogen bonds.
C) ionic bonds.
D) dipole-dipole attractions.
E) polar covalent.

Question 75

The shape of the carbon dioxide molecule is

A) linear.
B) square.
C) bent.
D) hexagonal.
E) trigonal pyramidal.

Question 76

A)metallic bond.
B)nonpolar covalent bond.
C)ionic bond.
D)polar ionic bond.
E)no bond.

Question 77

A polar covalent bond is found in which of these compounds?

A)
B)
C)
D)
E)

Question 78

If the electronegativity difference between elements X and Y is 2.1, the bond between the elements X-Y is

A)nonpolar ionic.
B)impossible.
C)ionic.
D)polar covalent.
E)nonpolar covalent.

Question 79

The shape of the carbon tetrachloride molecule is

A)trigonal pyramidal.
B)square.
C)octagonal.
D)tetrahedral.
E)linear.

Question 80

The carbon tetrachloride molecule, has a shape.

A) cubic
B) tetrahedral
C) circular
D) square
E) spherical