What is an ‘ion’ ? Mention its types. Write the electronic configuration of Mg (Z = 12).
An ion is an electrically charged particle that is formed when an atom gains or loses one or more electrons. There are two types of ions:
- Cations: positively charged ions formed by losing electrons.
- Anions: negatively charged ions formed by gaining electrons.
The electronic configuration of Mg (Z = 12) is: 2, 8, 2.