Question

Which scenario would cause a covalent bond to form?

Answer 1

Solution:

When the two same atoms share its electrons with each other in order to form octet, covalent bonds are favored.

Covalent bonds are tougher and hard to break on account of heat, temperature and pressure.

Unless and until a chemical reaction takes place, it is tough to break the covalent bonds between the atoms.

Answer 2

Answer:

A covalent bond forms if the bonded atoms have a lower total energy than the widely separated atoms.

Explanation:

A covalent bond forms if the bonded atoms have a lower total energy than the widely separated atoms. The simplest interpretation of the decrease in energy that occurs when electrons are shared is that both electrons lie between two attracting centers (the nuclei of the two atoms linked by the bond) and hence lie lower in energy than when they experience the attraction of a single centre.

A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions. Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units.

Hence, A covalent bond forms if the bonded atoms have a lower total energy than the widely separated atoms.

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