Atoms have a tendency to lose, gain, or share electrons such that their results in an octet of electrons. In other words, atoms have a tendency to lose, gain, or share electrons so as to achieve the electronic configuration of the nearest .

noble gas

Explanation:

Chemical bond is formed between atoms by losing gaining, or sharing electrons.

When the number of electrons and protons differ, it leads to the formation of ionic species. When an atom gains electrons, it will lead to the formation of negatively charged ion known as anion and when an atom looses electrons, it will lead to the formation of positively charged ion known as cation.

The atoms lose , gain or share electrons to achieve nearest noble gas configuration or to get stable.

Example : Sodium (Na) with atomic number 11 loses one electron to form to get electronic configuration of neon with 1 0 electrons.