Question

The loss or gain of electron leaves a complete highest energy level, so the electronic structure of an ion is the same as that of a :

• A. Metals
• B. Non-metals
• C. Alkali
• D. Noble gas

Answer 1

The correct option is D Noble gas

Ions are electrically charged particles formed when atoms lose or gain electrons. This loss or gain leaves a complete highest energy level, so the electronic structure of an ion is the same as that of a noble gas - such as a Helium, Neon or Argon.