Supporting Materials

Pre-Test

PART A

1.       Write the valence electronic configuration for the following elements. Based on the valence electronic configuration, predict the position of each of the elements in the Periodic Table.

i.                     Mg

ii.                   Br

iii.                 O

PART B

2.       Based on PART A, deduce whether the element is metal or non-metal.

PART C

3.       Determine whether each of the compounds below is ionic compound or covalent compound.

i.                     Magnesium Bromide

ii.                   Nitrogen gas

PART D

4.       Determine which element is the least electronegative in the polyatomic molecule.

i.                     SOCl₂

ii.                   COH₂

Post-Test

PART A

1.       Write the valence electronic configuration for the following elements. Based on the valence electronic configuration, predict the position of each of the elements in the Periodic Table.

i.                     Xe

ii.                   As

iii.                 P

PART B

2.       Based on PART A, deduce whether the element is metal or non-metal.

PART C

3.       Determine whether each of the compounds below is ionic compound or covalent compound.

i.                     Potassium oxide

ii.                   Carbon dioxide

PART D

4.       Determine which element is the least electronegative in the polyatomic molecule.

i.                     POCl₃

ii.                   COCl₂