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1) Arrange the following elements in order of decreasing first ionization energy: S, Ca, F, Rb, Si. 2) On the basis of periodic trends, choose the larger atom in each pair.. N or F, Al or Ge, C or Ge. 3) Choose the larger atom or ion from each pair. . S or S2−, Ca or Ca2+, Br− or Kr 4) Which group and block does Zinc (Zn) belong to? 5) Which group and block does Phosphorus (P) belong to? 6) Which group and block does Sodium (Na) belong to? 7) Build these compounds from their names: Sodium oxide,  Aluminum sulfide, Silver bromide, Zinc nitrate 8) Build these compounds from their names: Sodium oxide,  Aluminum sulfide, Silver bromide, Zinc nitrate 9) What is the electron configuration of oxygen (O), atomic number 8, and also the orbital diagram. 10) Determine the electron configuration of chlorine (Cl), atomic number 17, and also fill out the orbital diagram 11) Determine the electron configuration of magnesium (Mg), atomic number 12. 12) Write the electron configuration for fluorine (F), atomic number 9. 13) Write the empirical formula for the compound represented by each molecular formula: a. C₈H₁₈, b. C₁₂H₂₄O₆, c. C₄H₉N 14) Name the following compounds: NaCl, CaO, K2S, BaF2, MgBr2 15) Name the following compounds that include polyatomic ions: Na₂SO₄,  CaCO₃, KNO₃, Mg(OH)₂ 16) Name : Magnesium carbonate, Barium hydroxide, Potassium sulfate, Ammonium nitrate 17) For the following molecular formulas, provide the empirical formula: a. C₁₄H₂₈, b. C₇H₁₆,  c. C₉H₁₁O₁₁ 18) Find the molecular mass of glucose (C6H12O6).

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