Name: 
 

Physical Science Bonding Practice Test



Matching
 
 
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
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 are in an atom of magnesium?
a.
2
c.
4
b.
3
d.
5
 

 10. 

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
 

 11. 

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.
 

 12. 

What is the maximum charge an ion is likely to have?
a.
2
c.
4
b.
3
d.
5
 

 13. 

What is the charge on the strontium ion?
a.
2–
c.
1mc013-1.jpg
b.
1–
d.
2mc013-2.jpg
 

 14. 

How many electrons does barium have to give up to achieve a noble-gas electron configuration?
a.
1
c.
3
b.
2
d.
4
 

 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 elements does NOT form an ion with a charge of 1mc016-1.jpg?
a.
fluorine
c.
potassium
b.
hydrogen
d.
sodium
 

 17. 

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

 18. 

What is the formula of the ion formed when phosphorus achieves a noble-gas electron configuration?
a.
Pmc018-1.jpg
c.
Pmc018-3.jpg
b.
Pmc018-2.jpg
d.
Pmc018-4.jpg
 

 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. 

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.
 

 21. 

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

 22. 

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
 

 23. 

What is the formula unit of sodium nitride?
a.
NaN
c.
Namc023-2.jpgN
b.
Namc023-1.jpgN
d.
NaNmc023-3.jpg
 

 24. 

What is the formula for potassium sulfide?
a.
KS
c.
KSmc024-2.jpg
b.
Kmc024-1.jpgS
d.
Kmc024-3.jpgSmc024-4.jpg
 

 25. 

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
 



 
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