Name ____________________________________________________
Unit 5: Bonding – Ionic & Metallic
Date ________________________________
Multiple Choice Questions
1. Two molecules of HBr collide and then form H2 and Br2. During the collision, the
bonds in the HBr molecules are
(1) broken as energy is absorbed
(2) broken as energy is released
(3) formed as energy is absorbed
(4) formed as energy is released
2. Given the balanced equation representing a reaction: H + H  H2,
What occurs during this reaction?
(1) Energy is absorbed as bonds are formed.
(2) Energy is absorbed as bonds are broken.
(3) Energy is released as bonds are formed.
(4) Energy is released as bonds are broken.
3. As a chemical bond forms, the stability of the system
(1) decreases
(2) increases
(3) remains the same
4. Which subatomic particle plays the most important role in determining chemical
properties?
(1) proton
(2) neutron
(3) electron
(4) nucleus
5. Which group on the Periodic Table has elements with atoms that tend not to bond
with atoms of other elements?
(1) Group 1
(2) Group 2
(3) Group 17
(4) Group 18
6. Compared to a calcium atom, the calcium ion Ca+2 has
(1) more protons (2) fewer electrons (3) more electrons (4) fewer protons
7. What is the total number of electrons in a Cr+3 ion?
(1) 18
(2) 21
(3) 24
(4) 27
8. What is the total number of electrons in a S-2 ion?
(1) 10
(2) 14
(3) 16
(4) 18
9. When sodium and fluorine combine to produce the compound NaF, the ions formed
have the same electron configuration as atoms of
(1) argon, only (2) neon, only (3) both argon and neon (4) neither argon nor neon
10. Which two characteristics are associated with metals?
(1) low first ionization energy and low electronegativity
(2) low first ionization energy and high electronegativity
(3) high first ionization energy and low electronegativity
(4) high first ionization energy and high electronegativity
11. Which two characteristics are associated with nonmetals?
(1) low first ionization energy and low electronegativity
(2) low first ionization energy and high electronegativity
(3) high first ionization energy and low electronegativity
(4) high first ionization energy and high electronegativity
12. When lithium reacts with bromine to form LiBr, each lithium atom
(1) gains one electron and becomes a negatively charged ion
(2) gains three electrons and becomes a negatively charged ion
(3) loses one electron and becomes a positively charged ion
(4) loses three electrons and becomes a positively charged ion
13. The bonds in BaO are best described as
(1) covalent, because valence electrons are shared
(2) covalent, because valence electrons are transferred
(3) ionic, because valence electrons are shared
(4) ionic, because valence electrons are transferred
14. Which element reacts with oxygen to form ionic bonds?
(1) calcium
(2) hydrogen
(3) chlorine
(4) nitrogen
15. Which compound contains ionic bonds?
(1) NO
(2) NO2
(3) CaO
(4) CO2
16. Which atoms will bond when valence electrons are transferred between atoms?
(1) O and Se
(2) O and Sr
(3) O and H
(4) O and P
17. Which element forms an ionic compound when it reacts with lithium?
(1) K
(2) Fe
(3) Kr
(4) Br
18. Which element has atoms with the greatest attraction for electrons in a bond?
(1) beryllium
(2) fluorine
(3) lithium
(4) oxygen
19. Based on Table S, an atom of which element has the weakest attraction for
electrons in a chemical bond?
(1) polonium
(2) sulfur
(3) selenium
(4) tellurium
20. Which compound has the greatest degree of ionic character?
(1) NaF
(2) MgF2
(3) AlF3
(4) SiF4
21. Which of the following substances is the best conductor of electricity?
(1) H2O (g)
(2) H2O (s)
(3) NaCl (s)
(4) NaCl ()
22. Which sample is composed of particles arranged in a regular, geometric pattern?
(1) Cl2 (g)
(2) CCl4 ()
(3) LiCl (s)
(4) LiCl (aq)
23. The data table below represents the properties of substances A, B, C, and D.
Which substance is an ionic compound?
(1) A
(2) B
(3) C
(4) D
24. Which element forms a compound with chlorine with the general formula MCl?
(1) Rb
(2) Ra
(3) Re
(4) Rn
25. Which Group contains elements that react with oxygen to form compounds with the
general formula X2O?
(1) 1
(2) 2
(3) 14
(4) 18
26. What is the chemical formula for lead (IV) oxide?
(1) PbO2
(2) PbO4
(3) Pb2O
(4) Pb4O
27. Which electron dot diagram is correct for a S-2 ion?
(1)
(2)
(3)
(4)
28. Which electron dot diagram represents calcium oxide?
(1)
(2)
(3)
(4)
29. Metallic bonding occurs between atoms of
(1) sulfur
(2) copper
(3) fluorine
(4) carbon
30. A solid substance is an excellent conductor of electricity. The chemical bonds in
this substance are most likely
(1) ionic, because the valence electrons are shared between atoms
(2) ionic, because the valence electrons are mobile
(3) metallic, because the valence electrons are stationary
(4) metallic, because the valence electrons are mobile
31. Which type of bonding is present in a sample of an element that is malleable?
(1) ionic
(2) metallic
(3) nonpolar covalent
(4) polar covalent
32. Which substance is a good conductor of electricity in both the solid and liquid
phases?
(1) a metallic substance
(2) an ionic substance
(3) a network substance
(4) a molecular substance