Name ______________________________ Per ___
Vocabulary: Define the following.
1. Alloy
2. Covalent bond
3. Metallic bond
4. Ionic bond
5. Ion
6. Electronegativity
7. Dipole
8. Polar compound
9. Non-polar covalent bond
Multiple Choice: Place the word or words that best complete the statement in the blank.
1.
2.
3.
4.
5.
6.
7.
8.
An atom that has either lost or gained one or more electrons is called a(n) ___________.
Steel is an example of a(n) _____________.
Any compound bound by 2 oppositely charged atoms is called a ___________________
An atom that has lost electrons has a(n) ________________ charge.
At atom that has gained electrons will have a (n) ______________ charge.
A(n) _______________is the attraction between 2 oppositely charge atoms
A(n) __________________ is the bond formed when 2 elements share electrons.
When one side of a molecule is slightly positive and one side is slightly negative the resulting molecule
is called a(n) _____________.
9. When the electronegative so of 2 atoms in a molecule are not equal a(n) ________________molecule is
formed.
Free Response: Read each question carefully.
1. From where on the periodic table do atoms that form ionic bonds come?
2. What type of atoms form covalent bonds?
3. Why do atoms bond with one another? (2 reasons)
4. Give an example of an ionic compound.
5. Give an example of an ionic crystal.
6. Give an example of an alloy.
7. Give an example of a very common polar covalent molecule.
8. Which group on the periodic table does not form bonds? Why not?
9. Draw a molecule made of hydrogen and carbon atoms. Answer the questions below.
Be sure to include:
o correct # 0f C atoms
Hints: Each atom needs a full outer shell of e-s.
o correct number of H atoms
There are no double or triple bonds.
o correct number of bonds
A. Is the element you drew ionic, covalent, or metallic?
B. Is the molecule you drew a dipole or a non-polar molecule?
There is more to the review! Press on bravely!
10. Why do we make alloys?
11. Which one has a higher boiling point, a polar or a non-polar molecule? Why?
12. Using complete sentences, explain why a “tug of war” is a good analogy for remembering
how electronegativity works.
o What do the people in the competition represent?
o What does the rope represent?
o What does the strength of the people in the “tug of war” represent?
Fill in the blank:
Use the element below to answer questions.
5
B
10.81
1.
2.
3.
4.
This element has _____protons.
This element has ________electrons.
This element has ___________valence electrons.
This element needs _________electrons to fill its outer shell.