Question

How does Atomic Radius change as we more from left to right in a period ?

• A. Increases
• B. Decreases
• C. No Change
• D. Firstly increases than decreases

Answer 1

The correct option is B Decreases

• Atomic radius is generally decreases from left to right along a period because the electrons are added to same shell due to this they experience a great force from the nucleus.
  
• While atomic radius increases in group from top to bottom cause new shells are added and the electrons are bring away from the nucleus.
  
• Hence option B is correct answer.