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Name: __________________________________ Period: _______ Date: ______________ Periodic Table Practice Problems Matching Match each description in Column B with the correct term in Column A. Write the letter of the correct description on the line. Column A Column B _______ 1. metal a. the energy needed to remove an electron from an atom _______ 2. halogen b. good conductor of electricity _______ 3. ionization energy c. any element in Group 17 _______ 4. alkaline earth metal d. how much an atom wants one more electron _______ 5. electronegativity e. an element with all of its energy levels and orbitals full _______ 6. noble gas f. an element in Group 2 Multiple Choice 12. Which sublevel corresponds to the transition metals in the periodic table? a. s c. d b. p d. f 14. Which of the following elements is a metalloid? a. As c. Br b. Se d. Kr 16. The element iodine, I, is a a. period 5 alkali metal. b. period 4 halogen. c. period 5 halogen. d. period 5 transition metal. 19. From left to right across the second period of the periodic table, a. ionization energy increases. c. electronegativity decreases. b. atomic radius increases. d. atomic mass decreases. 22. Electronegativity a. generally decreases from left to right across a period. b. is the amount of energy needed to remove an electron from an atom. c. generally decreases from top to bottom within a group. d. is generally higher for metals than for nonmetals. 23. Atomic size generally a. increases from left to right across a period. b. decreases from top to bottom within a group. c. remains constant within a period. d. decreases from left to right across a period. 24. Of the following atoms, which one has the smallest ionization energy? a. boron c. nitrogen b. aluminum d. silicon 25. The alkali metals do not include a. Li. c. Na. b. Ca. d. Rb. Valence Electrons and Oxidation Number 1. What is the octet rule? ________________________________________________________________ _____________________________________________________________________________________ 2. Complete the table below. Element Lithium Calcium Sulfur Chlorine Germanium Beryllium Carbon Arsenic # of Valence Electrons Gain or Lose Electrons? # of Electrons to Gain or Lose Charge Metals, Nonmetals, and Metalloids Determine whether the following elements are metals, nonmetals, or metalloids. Then list one property of each element. Element a. Gold Metal, Nonmetal, or Metalloid? Metal Property Shiny b. Nitrogen c. Arsenic d. Sodium Periodic Families 1. You were just digging in your backyard and came across what you believe is a new element! It is in Group 4 and it has a high melting point. a. Do you think it’s a metal, nonmetal, or metalloid? Why? b. Which periodic family does it belong to? _________________ c. Which element could it be? ____________ 2. While exploring the bottom of the ocean floor, you come across a very cool element that you need to identify. After running some laboratory tests, you determine that the element is a gas at room temperature, doesn’t bind with any other elements, and doesn’t conduct electricity. a. Do you think it’s a metal, nonmetal, or metalloid? Why? b. Which periodic family does it belong to? _________________ c. Which element could it be? ____________ 3. Tell whether each of the following elements is an inner transition metal, a noble gas, an alkali metal, an alkaline earth metal, or a halogen. Then give its period, group number, and one property. Element Periodic Family Group Period Property a. Calcium Alkaline earth metal 2 4 Reactive b. Cesium c. Fluorine d. Chromium e. Neon f. Silver g. Helium h. Beryllium i. Bromine j. Krypton