Chapter 8.1, Problem 7SSC

Interpretation Introduction

Interpretation:

The type of atoms that form the covalent bond needs to be determined.

Concept introduction:

The bond formed by sharing of the valence electron is called covalent bond. The substance formed covalent bond atom is called molecule or compound and represented by its molecular formula.

Answer to Problem 7SSC

Non metal forms the covalent bond.

Explanation of Solution

The majority of the covalent bond is formed between the non − metal elements which is present right side in the periodic table.

These are elements with high ionization energy and low electron affinity. The atoms of such element share their electrons with other element such that both the atoms obtain octet configuration and achieve stability.

For example ${\text{H}}_2{\text{, Cl}}_2{\text{, O}}_2{\text{, CH}}_4{\text{, H}}_2{\text{O, NH}}_3$

${\text{CH}}_4$ : As the carbon has $4$ electrons in their valence shell so it does not either gain $4$ electron or loose $4$ electron its better it share $4$ electron and achieve octet configuration.

Conclusion

The covalent bond is formed by valence electron between the non − metal elements.