Name________________________ Date________________________ Upper Elementary Chemistry Element Final ______/100 _____% Part I. Fill in the missing information (1 pt each; 56 pts total) Element Symbol Atomic Number Au ______________ ______ ______________ ______ 2 ______ ______________ _____________________ ______ 22 _____________________ Li ______________ _____________________ Al _____________________ Kr ______________ _____________________ ______ 10 _____________________ F ______________ Hydrogen ______ ______________ _____________________ ______ 18 ______ ______________ _____________________ ______ 7 _____________________ B ______________ ______ ______________ _____________________ Calcium _____________________ Silver Oxygen Silicone _____________________ Zinc Na ______________ ______________ ______ ______________ _____________________ ______ 78 _____________________ ______ 25 ______ ______________ ______ 27 Copper _____________________ Name________________________ Date________________________ _____________________ Nickel _____________________ _____________________ Argon _____________________ Hg ______________ ______ ______________ ______ 20 Pb ______ Sn ______________ ______________ ______________ Part II. Fill in the missing information. (3pts each; 30 total) a) The element __________________________ is the most abundant element in the universe. b) The element _________________________ is lighter than air and is the second most abundant element in the universe c) The element ____________________ has an atomic number of 50 and is used to coat cans so that they do not rust. Its atomic symbol is ____________. d) __________________________ is found in fertilizer and is common in bananas. Its atomic symbol is K. e) This element glows blue when electricity is sent through it. It is often used in signs. The element is __________________. f) Ozone is made from three atoms of this element ________________________. Its atomic number is 8. g) This element is commonly found in batteries ______________________________. h) This element is commonly used for medicinal purposes. Its atomic symbol is I. ________________________. i) These two elements are often combined to make table salt. Alone, each of these elements are poisonous. What are they? ________________________ and _________________________. Name________________________ Date________________________ Part III. Using the key, write the chemical compound of each of the diagrams in the box below the picture. For each element that you are able to name correctly, you will receive an additional 2 pts. (2 pts each, 10 points total) Part IV. Extra credit (4 points possible) Write the chemical compound. a) Sugar _____________________________________
