Q. 134.4( 5 Votes )

Which among the following elements has the largest atomic radii?
A. Na

B. Mg

C. K

D. Ca


Answer :

Na and Mg belong to same period whereas Na and K are in the same group. Atomic radius increases in a group and decreases in a period. Potassium (K) has the largest atomic radii (243 pm). Sodium (Na) has 190 pm. Magnesium (Mg) has 145 pm. Calcium (Ca) has 194 pm.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
NCERT Exemplar | Periodic Classification of ElementsNCERT Exemplar | Periodic Classification of ElementsNCERT Exemplar | Periodic Classification of Elements47 mins
Smart Revision | Identify Me...Smart Revision | Identify Me...Smart Revision | Identify Me...45 mins
Foundation | Pradeep's H.O.T.S. : Periodic ClassificationFoundation | Pradeep's H.O.T.S. : Periodic ClassificationFoundation | Pradeep's H.O.T.S. : Periodic Classification48 mins
Important Questions on Periodic Classification of ElementsImportant Questions on Periodic Classification of ElementsImportant Questions on Periodic Classification of Elements44 mins
Smart Revision | Discussion Periodic Classification of ElementsSmart Revision | Discussion Periodic Classification of ElementsSmart Revision | Discussion Periodic Classification of Elements48 mins
Mnemonics to Learn Modern Periodic TableMnemonics to Learn Modern Periodic TableMnemonics to Learn Modern Periodic Table38 mins
Important Mnemonics to Learn Modern Periodic TableImportant Mnemonics to Learn Modern Periodic TableImportant Mnemonics to Learn Modern Periodic Table48 mins
Smart Revision | Trends of Periodic Table in 35 minutesSmart Revision | Trends of Periodic Table in 35 minutesSmart Revision | Trends of Periodic Table in 35 minutes49 mins
Be a Master of Classification in Reasoning!!Be a Master of Classification in Reasoning!!Be a Master of Classification in Reasoning!!47 mins
Classification of SoilsClassification of SoilsClassification of Soils41 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses