CHM 1025C Module 4 Sample Name: _________________

Module Four: Part A Pretest #1 Bond Recognition 10 points

Using a periodic chart, predict the bond that would form between the two elements:

1. Fe-Al __Metallic_____ (Metal-Metal)

2. P-S _Covalent_____(Nonmetal-Nonmetal)

3. C-O _Covalent_____(Metal-Nonmetal)

4. B-Cl _Covalent______(Semimetal-Nonmetal)

5. K-I _Ionic__________(Metal-Nonmetal)

For the following element pairs use the electronegativity table below to determine if the bond is ionic or covalent.

6. Na-P _2.2-0.9 = 1.3 (Covalent)___

7. Ca-Br _3.0-1.0 = 2.0 (Ionic) ____

8. Ge-O _3.0-2.0 =1.0 (Covalent)___

9. P-H _2.2-2.1 = 0.1 (Covalent)___

10. Be-Cl _3.2-1.6 = 1.6 (Covalent)___