Question

The following table shows the electronic configuration of the elements W, X, Y, Z:

Element	W	X	Y	Z
Electronic Configuration	2, 8, 1	2, 8, 7	2, 5	1

Answer the following questions based on the table above:

1. What type of bond is formed between
   1. W and X
   2. Y and Z
2. What is the formula of the compound formed between
   1. X and Z
   2. W and X

Answer 1

1. 1. An electrovalent bond forms when W donates 1 electron and X accepts it, and both attain a stable octet.
   2. A covalent bond is formed as electrons are shared between Y and Z.
2. 1. XZ, as X needs one 1 electron to complete its octet and Z needs one electron to complete its duplet; hence, they both share one electron pair and form the ZX compound.
   2. WX, as W has the tendency to donate one electron and gain stability, whereas X has the tendency to gain one electron to be stable. Hence, W donates one electron, and X accepts it, forming the WX compound.