4)Select the best answer. Different materials are better suited for different tasks. This is based on their molecular structure. Given what you know about metals, why is copper good for conducting electricity?

	Copper is a metal. Metals conductelectricity so well because electrons flow from atom to atom during metallic bonding.
	Copper is a semiconductor. Semiconductors conductelectricity so well because electrons flowfrom atom to atom during metallicbonding.
	Copper is a nonmetal. Nonmetals conductelectricity so well because electrons flowfrom atom to atom during metallicbonding.

5)Select the best answer. How are ionic bonds formed?

	Ionic bonds are formed when two atoms share electrons.
	Ionic bonds are formed when atomsof metals pack closely together.
	Ionic bonds are formed when there is aforce of attraction between the opposite charges of ions.

6)Select the best answer. How are metallic bonds formed?

	Metallic bonds are formed when atomsof metals pack closely together.
	Metallic bonds are formed when there is aforce of attraction between the opposite charges of ions.
	Metallic bonds are formed when two atoms share electrons.

7) Select the best answer. Many ionic compounds come from metals in Groups 1 and 2 on the periodic table,joining with nonmetals from Groups 16 and ____ on the periodic table.

	4
	18
	17
	6

8)Select the best answer. Ionic bonds form between _____.

	two nonmetals
	two metals
	a metal and a nonmetal

9)Select the best answer. Metallic bonds form between _____.

	a metal and a nonmetal
	two metals
	two nonmetals

10)Select the best answer. Which statement is true?

	Compounds form because of the magnetic attraction between positively chargedprotons that are attracted to the negatively charged electron.
	Compounds form because of the electrical attraction between positively chargedprotons and negatively charged electrons.
	Compounds form because of the electrical attraction between negatively chargedprotons and positively charged electrons.