MP Board · Class 11 · Chemistry · Classification of Elements and Periodicity in PropertiesElectronegativity increases across a period from left to right mainly due to:
📊Student Analytics & Stats
Total Attempts: 2
Accuracy Rate: 50%
Step-by-Step Solution
Across a period, atomic radius decreases and effective nuclear charge increases, which increases the tendency to attract a shared pair of electrons.
Detailed Options Breakdown
Option : Increase in atomic size
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Classification of Elements and Periodicity in Properties.
Option 1: Increase in effective nuclear charge (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Decrease in nuclear attraction
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Classification of Elements and Periodicity in Properties.
Option 3: Increase in shielding effect
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Classification of Elements and Periodicity in Properties.
💡 Study Guide: This question tests core syllabus concepts from Classification of Elements and Periodicity in Properties. For formulas, key summaries, and mock exam reference guides, read the full Classification of Elements and Periodicity in Properties Revision Notes.