Name: _____________________________________ Date: ___________ Period: ______ Yet even MORE electronegativity and radii questions (I know you love it!) 1. Rank the following atoms in order of decreasing atomic radii. Largest Radius Smallest Radius a. Al, Na, P, S ______ ______ ______ b. Al, Ga, In ______ ______ ______ c. As, Ge, Ga ______ ______ ______ d. Br, Ca, Cl, K ______ ______ ______ ______ ______ 2. Rank the following atoms in order of decreasing electronegativity. Largest Electronegativity Smallest Electronegativity a. Na, Li, K ______ ______ ______ b. K, Sc, Ca ______ ______ ______ c. Bi, At, Rn ______ ______ ______ d. As, Sn, S ______ ______ ______ 3. Rank the following ions in order of decreasing radii. a. Br-, Cl-, F- ____________________________ b. Be2+, Ca2+, Mg2+ ____________________________ c. Ca2+, Ga3+, K+ ____________________________ 4. Rank the following particles in order of decreasing radii. a. I, I- ____________________________ b. K, K+ ____________________________ c. Al, Al3+ ____________________________ 5. Circle which element in the following pairs has the larger atomic radius. a. Li, K b. Ca, Ni c. Ga, B d. O, C e. Cl, Br f. Be, Ba g. Si, S h. Fe, Au 6. Circle which element in the following pairs has the smaller ionic radius. a. K+, O2- b. Ba2+, I- c. Al3+, P3- d. K+, Cs+ e. Fe2+, Fe3+ f. F-, S2- Name: _____________________________________ Date: ___________ Period: ______ Periodic Trends Practice 1a 1b 1c 1d Na, Al, P, S In, Ga, Al Ga, Ge, As K, Ca, Br, Cl 2a 2b 2c 2d Li, Na, K Sc, Ca, K At, Bi, Rn S, As, Sn 3. Rank the following ions in order of decreasing radii. a. Br-, Cl-, F- Br-, Cl-, F- b. Be2+, Ca2+, Mg2+ Ca2+, Mg2+, Be2+ c. Ca2+, Ga3+, K+ K+, Ca2+, Ga3+ 4. Rank the following particles in order of decreasing radii. a. I, I- I-, I b. K, K+ K, K+ c. Al, Al3+ Al, Al3+ 5. Circle which element in the following pairs has the larger atomic radius. a. Li, K b. Ca, Ni c. Ga, B d. O, C e. Cl, Br f. Be, Ba g. Si, S h. Fe, Au 6. Circle which element in the following pairs has the smaller ionic radius. a. K+, O2- b. Ba2+, I- c. Al3+, P3- d. K+, Cs+ e. Fe2+, Fe3+ f. F-, S2-