Chapter 4 – Ionic Compounds
1) In an electron-dot structure of an element, the dots are used to represent
A) All of the electrons in the atom
B) The valence electrons
C) The electron arrangement
D) Only the electrons that will participate in bond formation
E) The electrons that the element will gain when it forms a compound
2) How many valence electrons are in the electron-dot structures for the elements in group
13?
A) 1
B) 2
C) 3
D) 4
E) 5
3) The number of electrons in the higher energy level of a nitrogen atom is
A) 1
B) 2
C) 3
D) 4
E) 5
4) Which of the following represents the correct electron-dot structure for Cl?
A)
B)
C)
D)
E)
5) The octet rule indicates that
A) All of the noble gases have eight total electrons
B) All of the shells in an atom hold a maximum of 8 electrons
C) All of the Group A elements have 8 valence electrons
D) Atoms lose, gain, or share valence electrons to have 8 valence electrons
E) The noble gases react with other compounds to get 8 valence electrons
6) In ionic compounds, __________ lose their valence electrons to form positively charged
__________.
A) Metals; anions
B) Nonmetals; cations
C) Metals; polyatomic ions
D) Nonmetals; anions
E) Metals; cations
7) How many electrons will aluminum gain or lose when it forms an ion?
A) Lose 1
B) Gain 5
C) Lose 2
D) Lose 3
E) Gain 1
8) What is the symbol for the ion with 19 protons and 18 electrons?
A) F+
B) FC) Ar+
D) KE) K+
9) The number of electrons in an ion with 20 protons and an ionic charge of 2- is
A) 24
B) 22
C) 20
D) 18
E) 16
10) Elements in group 2A(2) of the periodic table form ions with a charge of
A) 1+
B) 1C) 2+
D) 3+
E) 0
11) The correct formula for a compound formed from the elements Al and O is
A) AlO
B) Al2O
C) Al3O2
D) AlO3
E) Al2O3
12) The correct formula for the compound formed from Mg and S is
A) MgS
B) MgS2
C) Mg2S
D) Mg2S2
E) Mg2S3
13) Which one of the following compounds contains an ion with a 3+ charge?
A) KCl
B) Na2O
C) FeCl3
D) CuCl
E) MgCl2
14) The compound MgCl2 is named
A) Magnesium chlorine
B) Magnesium dichloride
C) Magnesium(II) chloride
D) Magnesium chloride
E) Dimagnesium chloride
15) What is the correct formula for the iron(II) ion?
A) Fe+
B) Fe2+
C) Fe3+
D) Fe216) The name of the Cu+ ion is
A) Copper(II)
B) Copper(I)
C) Coppric
D) Copper
E) Cuprum
E) Fe3-
17) What is the correct formula for iron(III) sulfide?
A) Fe2S2
B) Fe2S
C) FeS
D) FeS2
E) Fe2S3
18) The name of Al2(SO4)3 is
A) Aluminum(III) sulfate
B) Dialuminum trisulfate
C) Dialuminum sulfate
D) Dialuminum trisulfate
E) Aluminum sulfate
19) Ionic bonding is expected in which of these compounds
A) Cl2
B) KF
C) OF2
D) HF
E) H2
20) What is the formula of the nitride ion?
A) N3B) NO2C) NO33-
E) NO3-
D) NO32-
21) The name of the HSO4- ion is
A) Sulfate
B) Hydrogen sulfate
C) Sulfite
D) Hydrogen sulfite
E) Sulfide
22) What is the formula of a compound that contains Na+ and PO43- ions?
A) Na3PO4
B) NaPO4
C) Na2PO4
D) Na3(PO3)4
E) Na3P
23) What is the name of Fe2(SO4)3?
A) Iron sulfate
B) Iron(II) sulfate
C) Iron(III) sulfate
D) diIron trisulfate
E) Iron trisulfate
24) Which of the following compounds contains an ion with a 3+ charge?
A) Al2O3
B) CuCl2
C) FeCl2
D) CaO
E) MgCl2
25) When sodium and sulfur combine, what is the formula of their compound?
A) NaS
B) Na2S
C) NaS2
D) Na2S3
E) Na2SO4
26) What is the correct name for ZnCl2?
A) Zircon chloride
B) Zinc(II) dichloride
C) Zinc chloride
D) Zinc dichloride
E) Zinc(II) chloride
27) Gold(III) bromide has the following formula.
A) AuBr
B) Au2Br3
C) Au3Br2
D) AuBr3
E) AuBr2
28) What is the name of FeS?
A) Iron(II) sulfide
B) Iron sulfide
C) Iron sufur
D) Iron sulfate
E) Iron sulfite
29) The formula for the compound formed between calcium and sulfate ion is which of
these?
A) Ca2(SO4)2
B) CaSO4
C) Ca(SO4)2
D) Ca2SO4
E) Ca2(SO4)3
30) What is the name of NH4Cl?
A) Nitrogen trihydride chloride
B) Nitrogen chloride
C) Ammonium chloride
D) Ammonium chlorate
31) What is the charge of chromium in K2Cr2O7?
A) +3
B) +2
C) +7
D) +6
E) +12
32) What is the charge of Mn in KMnO4?
A) +1
B) +3
C) +5
E) +7
D) +9