Name: 
 

CH 7 - Ionic and Metallic Bonding Test


Matching (Value 7)
 
 
Match each item with the correct statement below.
a.
halide ion
e.
valence electron
b.
octet rule
f.
coordination number
c.
ionic bond
g.
metallic bond
d.
electron dot structure
 

 1. 

 an electron in the highest occupied energy level of an atom
 

 2. 

 Atoms react so as to acquire the stable electron structure of a noble gas.
 

 3. 

 a depiction of valence electrons around the symbol of an element
 

 4. 

 an anion of chlorine or other halogen
 

 5. 

 the force of attraction binding oppositely charged ions together
 

 6. 

 the attraction of valence electrons for metal ions
 

 7. 

 the number of ions of opposite charge surrounding each ion in a crystal
 

Multiple Choice (Value 28)
Identify the choice that best completes the statement or answers the question.
 

 8. 
How many valence electrons are in an atom of phosphorus?
a.
2
c.
4
b.
3
d.
5
 

 9. 
How many valence electrons does a helium atom have?
a.
2
c.
4
b.
3
d.
5
 

 10. 
How many valence electrons are in a silicon atom?
a.
2
c.
6
b.
4
d.
8
 

 11. 
What is the name given to the electrons in the highest occupied energy level of an atom?
a.
orbital electrons
c.
anions
b.
valence electrons
d.
cations
 

 12. 
How does calcium obey the octet rule when reacting to form compounds?
a.
It gains electrons.
b.
It gives up electrons.
c.
It does not change its number of electrons.
d.
Calcium does not obey the octet rule.
 

 13. 
What is the electron configuration of the calcium ion?
a.
1smc013-1.jpg2smc013-2.jpg2pmc013-3.jpg3smc013-4.jpg3pmc013-5.jpg
c.
1smc013-12.jpg2smc013-13.jpg2pmc013-14.jpg3smc013-15.jpg3pmc013-16.jpg4smc013-17.jpg
b.
1smc013-6.jpg2smc013-7.jpg2pmc013-8.jpg3smc013-9.jpg3pmc013-10.jpg4smc013-11.jpg
d.
1smc013-18.jpg2smc013-19.jpg2pmc013-20.jpg3smc013-21.jpg
 

 14. 
The octet rule states that, in chemical compounds, atoms tend to have ____.
a.
the electron configuration of a noble gas
b.
more protons than electrons
c.
eight electrons in their principal energy level
d.
more electrons than protons
 

 15. 
What is the formula of the ion formed when potassium achieves noble-gas electron configuration?
a.
Kmc015-1.jpg
c.
Kmc015-3.jpg
b.
Kmc015-2.jpg
d.
Kmc015-4.jpg
 

 16. 
Which of the following ions has a pseudo-noble-gas electron configuration?
a.
Femc016-1.jpg
c.
Cumc016-3.jpg
b.
Mnmc016-2.jpg
d.
Nimc016-4.jpg
 

 17. 
Which of the following elements does NOT form an ion with a charge of 1mc017-1.jpg?
a.
fluorine
c.
potassium
b.
hydrogen
d.
sodium
 

 18. 
How many electrons does nitrogen gain in order to achieve a noble-gas electron configuration?
a.
1
c.
3
b.
2
d.
4
 

 19. 
How does oxygen obey the octet rule when reacting to form compounds?
a.
It gains electrons.
b.
It gives up electrons.
c.
It does not change its number of electrons.
d.
Oxygen does not obey the octet rule.
 

 20. 
What is the electron configuration of the oxide ion (Omc020-1.jpg)?
a.
1smc020-2.jpg2smc020-3.jpg2pmc020-4.jpg
c.
1smc020-8.jpg2smc020-9.jpg
b.
1smc020-5.jpg2smc020-6.jpg2pmc020-7.jpg
d.
1smc020-10.jpg2smc020-11.jpg2pmc020-12.jpg
 

 21. 
Which of the following occurs in an ionic bond?
a.
Oppositely charged ions attract.
b.
Two atoms share two electrons.
c.
Two atoms share more than two electrons.
d.
Like-charged ions attract.
 

 22. 
A compound held together by ionic bonds is called a ____.
a.
diatomic molecule
c.
covalent molecule
b.
polar compound
d.
salt
 

 23. 
Which of the following is true about an ionic compound?
a.
It is a salt.
c.
It is composed of anions and cations.
b.
It is held together by ionic bonds.
d.
all of the above
 

 24. 
How many valence electrons are transferred from the nitrogen atom to potassium in the formation of the compound potassium nitride?
a.
0
c.
2
b.
1
d.
3
 

 25. 
How many valence electrons are transferred from the calcium atom to iodine in the formation of the compound calcium iodide?
a.
0
c.
2
b.
1
d.
3
 

 26. 
What is the formula unit of aluminum oxide?
a.
AlO
c.
AlOmc026-2.jpg
b.
Almc026-1.jpgO
d.
Almc026-3.jpgOmc026-4.jpg
 

 27. 
What is the name of the ionic compound formed from lithium and bromine?
a.
lithium bromine
c.
lithium bromium
b.
lithium bromide
d.
lithium bromate
 

 28. 
What is the formula for sodium sulfate?
a.
NaSOmc028-1.jpg
c.
Na(SOmc028-4.jpg)mc028-5.jpg
b.
Namc028-2.jpgSOmc028-3.jpg
d.
Namc028-6.jpg(SOmc028-7.jpg)mc028-8.jpg
 

 29. 
Which of the following compounds has the formula KNOmc029-1.jpg?
a.
potassium nitrate
c.
potassium nitrite
b.
potassium nitride
d.
potassium nitrogen oxide
 

 30. 
Which of the following pairs of elements is most likely to form an ionic compound?
a.
magnesium and fluorine
c.
oxygen and chlorine
b.
nitrogen and sulfur
d.
sodium and aluminum
 

 31. 
Ionic compounds are normally in which physical state at room temperature?
a.
solid
c.
gas
b.
liquid
d.
plasma
 

 32. 
Which of the following is NOT a characteristic of most ionic compounds?
a.
They are solids.
b.
They have low melting points.
c.
When melted, they conduct an electric current.
d.
They are composed of metallic and nonmetallic elements.
 

 33. 
Which of the following particles are free to drift in metals?
a.
protons
c.
neutrons
b.
electrons
d.
cations
 

 34. 
What is the basis of a metallic bond?
a.
the attraction of metal ions to mobile electrons
b.
the attraction between neutral metal atoms
c.
the neutralization of protons by electrons
d.
the attraction of oppositely charged ions
 

 35. 
In a hexagonal close-packed crystal, every atom (except those on the surface) has ____ neighbors.
a.
6
c.
12
b.
8
d.
10
 

Short Answer (Value 4)
 

 36. 
Give the electron configurations for mercury and its 2sa036-1.jpg ion.
 

 37. 
Give the electron configuration for calcium the ion.
 

 38. 
Give the electron configuration for the lithium ion.
 

 39. 
Write the electron configuration diagram that shows the transfer of electrons that takes place to form the compound sodium fluoride. Include the electron configurations of the ions formed.
 

Numeric Response (Value 2)
 

 40. 
How many valence electrons are in bromine?

 

 41. 
How many electrons does a gallium atom give up when it becomes an ion?

 



 
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