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)