Chapter 5 Review
1. Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the “2” tell you?
2. Each family in the periodic table has its own characteristic properties based on the number of ______.
3. When an atom loses an electron, it becomes a ______.
4. An ionic bond is the attraction between ______.
5. Ions that are made of more than one atom are examples of ______.
6. What is the chemical name for the compound Na2S?
7. What are the properties of ionic compounds?
8. In what form can an ionic compound conduct electricity?
9. A chemical bond formed when two atoms share electron called a(n) ______.
10. What is a double bond?
11. Which property is shared by most molecular compounds?
12. Molecular compounds do not conduct electricity because they ______.
13. A covalent bond in which electrons are shared unequally is ______.
14. Molecules that contain two polar bonds are ______.
15. In the chemical formula for an ionic compound, which item is written first?
16. Electrons involved in bonding between atoms are ______.
17. What is the greatest number of valence electrons an atom can have?
18. Water is polar and oil is nonpolar. What happens when the two liquids are poured into the same container?
19. If atoms of a halogen nonmetal (Group 17) gain one electron, the atoms then have ______.
20. Ionic compounds are electrically ______.
21. Which of the following terms means that metals can be rolled into thin sheets, as in aluminum foil, or beaten complex shapes?
22. A mixture that is made of two or more elements- one that is a metal- that has the properties of metal is an ______.
23. What is an advantage that alloys might have over many pure metals?
24. Steel is an alloy of one or more elements combined with ______.
25. What are the properties of steel?
26. Brass and steel are examples of ______.
27. What strong alloy, containing carbon, iron, and another metal like chromium or nickel, is used to make construction equipment, bicycle frames, and train rails?
28. What is a good description of a metal crystal?
29. What does ductile mean?
30. The attraction between a positive metal ion and the electrons surrounding it is an ______.
31. The valence electrons are those electrons most ______held by the atom.
32. Each family in the periodic table has its own characteristic properties based upon its number of ______.
33. When an atom gains an electron it becomes a ______ion.
34. The attraction between a positive ion and a negative ion results in ______bond.
35. Orderly crystal shapes, high melting points, and electrical conductivity when dissolved in water are properties of ______compounds.
36. When electrons are ______between two atoms, a covalent bond is formed.
37. Low melting points and lack of electrical conductivity are properties of ______compounds.
38. A ______bond is formed when two atoms share electrons unequally.
39. In every alloy, at least one of the components is a ______.
40. ______is an alloy of iron with carbon, nickel, and other elements.
Honors Class
1. Be able to look at a diagram and list the most reactive nonmetals, the number of electrons they contain, how the elements will react, construct electron dot diagrams, which group loses electrons most easily, and how many valence electrons they contain.
2. Be able to identify the charge different ions, write the chemical formula for various compounds, write the chemical name from looking at the chemical formula, identify the names of polyatomic ions from looking at the formula, explain what a polyatomic ion is.