Question

A negatively charged ion called --------------------- is formed by gaining one or more electrons by an atom.

Answer 1

Ions: An ion is a charged particle that carries a positive by losing electrons and carries a negative charge by the gain of electrons.

Anion: A charged particle that carries a negative by gaining electrons from other atoms to attain noble gas configuration.

• Example: Fluorine ($\mathrm{F}$- 2,7) gains one electron to attain Neon ($\mathrm{Ne}$ - 2,8) gas configuration.
• Representation of Fluoride ion - ${\mathrm{F}}^{-}$

Therefore a negatively charged ion called Anion is formed by gaining one or more electrons from an atom.