Electronegativity Worksheet Name___________________________________ Block _________ 1. How are ionic bonds and covalent bonds different? 2. How does a polar covalent bond differ from a non-polar covalent bond? 3. How do electronegativity values help us determine the polarity of a bond? 4. Fill in the values to complete the following table for predicting bond type based on differences in electronegativity. 0.0 _______ Non-polar Covalent bond Polar Covalent Bond _______ ______ Ionic Bond 5. Does electronegativity increase or decrease when you go across a period on the periodic table? Does it increase or decrease when you move down a group on the periodic table? 6. For each of the following sets of elements, identify the element expected to be most electronegative (circle) and which is expected to be least electronegative (cross out), based on their position in the periodic table. a. K, Sc, Ca b. Br, F, At c. C, O, N Use the table of electronegativities, above, to determine which type of bond should be formed between the two atoms. Atom 1 Atom 2 7. Phosphorus Silicon 8. Cobalt Bromine 9. Germanium Selenium 10. Silicon Fluorine 11. Potassium Nitrogen 12. Cesium Oxide 13. Hydrogen Phosphorus 14. Arsenic Chloride 15. Lithium Chloride 16. Iron Carbon Electronegativity Difference Value Bond Type (Non-polar Covalent, Polar, Ionic)