CBSE · Class 10 · Science · Periodic Classification of ElementsWhat happens to atomic radius as we move from left to right across a period?
Step-by-Step Solution
As we move across a period from left to right, the nuclear charge increases, pulling electrons closer to the nucleus and thus decreasing the atomic radius.
Detailed Options Breakdown
Option : It increases
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Periodic Classification of Elements.
Option 1: It decreases (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: It remains unchanged
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Periodic Classification of Elements.
Option 3: It first increases then decreases
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Periodic Classification of Elements.
💡 Study Guide: This question tests core syllabus concepts from Periodic Classification of Elements. For formulas, key summaries, and mock exam reference guides, read the full Periodic Classification of Elements Revision Notes.