Question

An atom that can neither gain nor lose electrons is said to be?
1. Non Metallic
2. An inert
3. Metallic
4. Atmospheric

Answer 1

Correct Answer - Option 2 : An inert

The correct answer is An inert.

CONCEPT:

• Metals have a tendency to lose electrons yielding positive ions. Eg : Na → Na⁺ + 1e^–
• This tendency gives rise to metallic character of an element.
• Non-metals have a tendency to gain electrons yielding negative ions. Eg: Cl+1e^–  → Cl^–

EXPLANATION:

• An atom that can neither gain nor loses electrons is called an inert atom.
• The elements in group 18 are called inert gases because they neither gain nor lose electrons.
• They have very little tendency to form chemical compounds with other elements.
• They have a highly stable electronic configuration in their outer shell.