Which of the following elements has the maximum atomic radius?

Question

Accepted Answer

Sodium (Na) has the maximum atomic radius among the given options because atomic size generally increases down a group as new shells are added, and decreases across a period from left to right due to an increase in effective nuclear charge. Sodium is located in Group 1 and Period 3 of the Modern Periodic Table.

Periodic Classification of Elements

❓ Sibling Questions in this Chapter