Chemistry Chapter 7A (Prentice)
 
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Chemistry Chapter 7A (Prentice)

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

 11. 
How many valence electrons are in a silicon atom?
a.
2
c.
6
b.
4
d.
8
 

 12. 
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
 

 13. 
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.
 

 14. 
What is the maximum charge an ion is likely to have?
a.
2
c.
4
b.
3
d.
5
 

 15. 
What is the electron configuration of the calcium ion?
a.
1smc015-1.jpg2smc015-2.jpg2pmc015-3.jpg3smc015-4.jpg3pmc015-5.jpg
c.
1smc015-12.jpg2smc015-13.jpg2pmc015-14.jpg3smc015-15.jpg3pmc015-16.jpg4smc015-17.jpg
b.
1smc015-6.jpg2smc015-7.jpg2pmc015-8.jpg3smc015-9.jpg3pmc015-10.jpg4smc015-11.jpg
d.
1smc015-18.jpg2smc015-19.jpg2pmc015-20.jpg3smc015-21.jpg
 

 16. 
What is the electron configuration of the gallium ion?
a.
1smc016-1.jpg2smc016-2.jpg2pmc016-3.jpg3smc016-4.jpg3pmc016-5.jpg
c.
1smc016-12.jpg2smc016-13.jpg2pmc016-14.jpg3smc016-15.jpg3pmc016-16.jpg4smc016-17.jpg4pmc016-18.jpg
b.
1smc016-6.jpg2smc016-7.jpg2pmc016-8.jpg3smc016-9.jpg3pmc016-10.jpg4smc016-11.jpg
d.
1smc016-19.jpg2smc016-20.jpg2pmc016-21.jpg3smc016-22.jpg3pmc016-23.jpg3dmc016-24.jpg
 

 17. 
What is the charge on the strontium ion?
a.
2–
c.
1mc017-1.jpg
b.
1–
d.
2mc017-2.jpg
 

 18. 
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
 

 19. 
How many electrons does silver have to give up in order to achieve a pseudo-noble-gas electron configuration?
a.
1
c.
3
b.
2
d.
4
 

 20. 
How many electrons does barium have to give up to achieve a noble-gas electron configuration?
a.
1
c.
3
b.
2
d.
4
 

 21. 
What is the formula of the ion formed when potassium achieves noble-gas electron configuration?
a.
Kmc021-1.jpg
c.
Kmc021-3.jpg
b.
Kmc021-2.jpg
d.
Kmc021-4.jpg
 

 22. 
Which of the following ions has a pseudo-noble-gas electron configuration?
a.
Femc022-1.jpg
c.
Cumc022-3.jpg
b.
Mnmc022-2.jpg
d.
Nimc022-4.jpg
 

 23. 
Which of the following elements does NOT form an ion with a charge of 1mc023-1.jpg?
a.
fluorine
c.
potassium
b.
hydrogen
d.
sodium
 

 24. 
What is the formula of the ion formed when tin achieves a stable electron configuration?
a.
Snmc024-1.jpg
c.
Snmc024-3.jpg
b.
Snmc024-2.jpg
d.
Snmc024-4.jpg
 

 25. 
What is the formula of the ion formed when cadmium achieves a pseudo-noble-gas electron configuration?
a.
Cdmc025-1.jpg
c.
Cdmc025-3.jpg
b.
Cdmc025-2.jpg
d.
Cdmc025-4.jpg
 

 26. 
Which of the following is a pseudo-noble-gas electron configuration?
a.
1smc026-1.jpg2smc026-2.jpg2pmc026-3.jpg3smc026-4.jpg3dmc026-5.jpg
c.
1smc026-11.jpg2smc026-12.jpg2pmc026-13.jpg3smc026-14.jpg3pmc026-15.jpg3dmc026-16.jpg
b.
1smc026-6.jpg2smc026-7.jpg2pmc026-8.jpg3smc026-9.jpg3pmc026-10.jpg
d.
1smc026-17.jpg2smc026-18.jpg2pmc026-19.jpg3smc026-20.jpg3dmc026-21.jpg4smc026-22.jpg
 

 27. 
How many electrons does nitrogen gain in order to achieve a noble-gas electron configuration?
a.
1
c.
3
b.
2
d.
4
 

 28. 
What is the formula of the ion formed when phosphorus achieves a noble-gas electron configuration?
a.
Pmc028-1.jpg
c.
Pmc028-3.jpg
b.
Pmc028-2.jpg
d.
Pmc028-4.jpg
 

 29. 
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.
 

 30. 
The electron configuration of a fluoride ion, Fmc030-1.jpg, is ____.
a.
1smc030-2.jpg2smc030-3.jpg2pmc030-4.jpg
c.
1smc030-5.jpg2smc030-6.jpg2pmc030-7.jpg3smc030-8.jpg
b.
the same as that of a neon atom
d.
the same as that of a potassium ion
 



 
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