What are ions? How are they formed? What bond is called ionic?

What are ions? Ions are positively or negatively charged particles, into which the atoms of chemical elements are converted as a result of the return or attachment of electrons.
How are they formed? As a result of the return or attachment of electrons by atoms of chemical elements.
What bond is called ionic? The chemical bond formed between ions due to electrostatic attraction is called ionic bond.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.