Building Vocabulary Match each term with its definition by writing the letter of the correct definition on

the line beside the term.

a.

9. diatomic molecule

10. halogen

11. metalloid

12. inert gases

13. nonmetal

14. semiconductor

a type of element that has some of the charac-

teristics of metals and some of nonmetals

b. a family of unreactive elements whose atoms

do not gain, lose, or share valence electrons

c. formed of two atoms

d. a substance that carries electricity under

certain circumstances, but not under other

circumstances

a type of element whose physical properties

are generally opposite to that of metals

f. a family of very reactive elements whose atoms

gain or share one electron

e.

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