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# Section I. Multiple Choice Questions **Instructions:** _Underline the correct answer._ (6 points total - 0.5 points each) **1. The vertical columns of elements in the periodic table are called** A. Names B. Notation **C. Periods** D. Groups **2. The horizontal rows of elements in the periodic...

# Section I. Multiple Choice Questions **Instructions:** _Underline the correct answer._ (6 points total - 0.5 points each) **1. The vertical columns of elements in the periodic table are called** A. Names B. Notation **C. Periods** D. Groups **2. The horizontal rows of elements in the periodic table are called** A. Names B. Notation **C. Periods** D. Groups **3. According to its position in the periodic table, how many valence electrons does an atom of the element oxygen (O) have?** A. 2 B. 4 **C. 6** D. 8 **4. According to its position in the periodic table, which is the outer energy level that electrons occupy in an atom of the element sodium (Na)?** A. 1 B. 3 **C. 11** D. 22 **5. Which element has 2 valence electrons in the second energy level?** A. Beryllium (Be) B. Lithium (Li) C. Sodium (Na) **D. Magnesium (Mg)** **6. Which element is classified as a metal?** A. Hydrogen (H) B. Sulfur (S) **C. Potassium (K)** D. Bromine (Br) **7. Which element is classified as a nonmetal?** A. Fluorine (F) B. Chromium (Cr) C. Lithium (Li) **D. Galllium (Ga)** **8. Which element is classified as a metalloid?** A. Cadmium (Cd) **B. Arsenic (As)** C. Helium (He) D. Carbon (C)