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Worksheet 16 . Topic 4

Set B: Degree of bond polarity Objective: To test your ability to determine and compare
degree of bond characteristics and molecular polarity
For each set of formulas: Determine electronegativity value for each element, calculate
electronegativity difference for each formula, and answer questions below each set.

Set I. Formulas HBr HF HI HCl

Electronegativity value Br F I Cl
Electronegativity value H H H H
Electronegativity difference

10. Which formula has the most covalent characteristics?
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11. Which formula has the least ionic characteristics?
12. Which formula is the most polar?

Set II. Formulas CaO K2O Al3O2 BaO

Electronegativity value O O O O
Electronegativity value Ca K Al Ba
Electronegativty difference

13. Which formula has the least covalent characteristics?
14. Which formula has the most ionic characteristics?
15. Which formula is the least polar? Need help? Study Book pg 85 Set 25 - 26

Set III. Formulas NH3 CCl4 H2O HCl

Electronegativity value N Cl O Cl
Electronegativity value H C H H
Electronegativity difference
16. Which formula has the most covalent characteristics?
17. Which formula has the least ionic characteristics?
18. Which formula is the most polar?

Set IV. Formulas PCl3 NaCl MgCl2 SCl2

Electronegativity value Cl Cl Cl Cl
Electronegativity value P Na Mg S
Electronegativity difference

19. Which formula has the least covalent characteristics?
20. Which formula has the most ionic characteristics?
21. Which formula is the least polar?
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