There are three elements X, Y and Z having atomic numbers of 6, 16 and 19 respectively. Based on this information, Het has been asked to answer the following questions: What will be the formula of covalent compound formed ?

There are three elements X, Y and Z having atomic numbers of 6, 16 and

1.	There are three elements X, Y and Z having atomic numbers of 6, 16 and 19 respectively. Based on this information, Het has been asked to answer the following questions: What will be the formula of covalent compound formed ?
Answer» SOLUTION :In order to answer these questions, Het first wrote down the electronic configurations of the elements X, Y and Z by USING their atomic numbers, as follows: (5) The element X has 4 valence ELECTRONS, so its valency is 4. The element Y has 6 valence electrons, so its valency is 2. So, one ATOM of element X will combine with two atoms of element Y to form a covalent compound having the formula `XY_(2)`.