Question

Define covalent bond in more than 1000 words​

Answer 1

Answer:

COVALENT (MOLECULAR) BOND

The chemical bond that is formed between two combining atoms by mutual sharing of one or more pairs of electrons is called a covalent (or a molecular) bond and the compound formed due to this bond is called a covalent compound.

The molecule formed due to the sharing of electrons (covalent bond) is called a covalent molecule.

The atoms of non-metals usually have 5, 6 or 7 electrons in their outermost shell (except carbon which has 4 and hydrogen which has just 1 electron in the outermost shell). The atoms of such elements do not favour the loss of its electrons due to energy considerations and thus the transfer of electrons is not possible. Therefore, these atoms can complete their octet only by mutually sharing one or more pairs of electrons. Each atom contributes equal number of electron(s).

Explanation:

$\underbrace\red{Hence defined}$

Answer 2

COVALENT (MOLECULAR) BOND

• The chemical bond that is formed between two combining atoms by mutual sharing of one or more pairs of electrons is called a covalent (or a molecular) bond and the compound formed due to this bond is called a covalent compound.

• The molecule formed due to the sharing of electrons (covalent bond) is called a covalent molecule.

• The atoms of non-metals usually have 5, 6 or 7 electrons in their outermost shell (except carbon which has 4 and hydrogen which has just 1 electron in the outermost shell). The atoms of such elements do not favour the loss of its electrons due to energy considerations and thus the transfer of electrons is not possible. Therefore, these atoms can complete their octet only by mutually sharing one or more pairs of electrons. Each atom contributes equal number of electron(s).