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TWO SODIUM ATOMS WALK INTO A BAR…. GOTTA DEAD CAT? BARIUM WANNA HEAR A JOKE ABOUT OXYGEN AND POTASSIUM… OK YOU MUST HAVE OXYGEN, HYDROGEN,SULFUR,11 PROTONS SODIUM, CAUSE U SODIUM PHOSPHORUS FINE Q $100 Q $100 Q $100 Q $100 Q $100 Q $200 Q $200 Q $200 Q $200 Q $200 Q $300 Q $300 Q $300 Q $300 Q $300 Q $400 Q $400 Q $400 Q $400 Q $400 Q $500 Q $500 Q $500 Q $500 Q $500 Final Jeopardy Most metals are a. solid at room temperature. b. dull. c. bad conductors of electric current. d. not malleable. The elements to the right of the zigzag line on the period table are called a. b. nonmetals. c. metals. d. metalloids. conductors. particles of an atom that orbit its nucleus and have a negative charge the number of an atom’s protons What is necessary for substances to burn? a. hydrogen c. helium b. oxygen d. carbon The carbon group has two metalloids, both of which are used to make a. b. dinnerware. foil. c. cans. d. computer chips. Transition metals are a. good conductors of thermal energy. b. more reactive than alkali metals. c. not good conductors of electric current. d. used to make aluminum. Which of the following is a property of alkali metals? a. b. c. d. They are so hard they cannot be cut. They are very reactive. They are stored in water. They have few uses. When a halogen reacts with a metal, what is formed? a. b. a salt a compound c. a nonmetal d. an electron What can group numbers on the periodic table help you determine? a. b. c. d. the number of valence electrons the number of protons the number of electrons the number of neutrons What do atoms gain, lose, or share when they bond? a. b. protons neutrons c. electrons d. atoms Most molecules are composed of what? a. b. c. d. one or more elements three or more elements two or more elements four or more elements What are the only parts of an atom that make chemical bonds? a. b. c. d. protons in the nucleus electrons in the nucleus neutrons in the nucleus valence electrons How many valence electrons does helium need to have a filled outermost energy level? a. b. 1 2 c. 4 d. 8 What is the same within each group on the periodic table? a. b. c. d. number of protons number of atoms number of electrons number of valence electrons Why don’t noble gases normally form chemical bonds? a. b. c. d. They have 2 valence electrons. They have a full outermost energy level. They have an empty outer level. They have 8 protons. Most atoms form bonds using which of the following? a. b. protons electrons c. valence electrons d. neutrons What is the most important factor in determining how an atom will bond? a. the number of protons b. the number of neutrons c. the number of electrons in the innermost energy level d. the number of electrons in the outermost energy level Besides being valuable, gold is special because it can be hammered into a very thin foil. This property is called a. b. malleability. ductility. c. conductivity. d. brittleness. The number beneath carbon indicates the a. atomic number. b. chemical symbol. c. atomic mass. d. element name. ( Not the group number) GASES SOLIDS NONMETALS METALS SHINY METALLOIDS NOBLE GASES SOLID SOLID SHINYY NONMETALS GASES 2 Na ATOMS…. A A Electrons Atomic number b gotta D A B A a wanna C C D B Oh snap B C D A c d U must 25 35 18 37 7,2,3