1. Tardigrade
  2. Question
  3. Chemistry
  4. The atom of smallest atomic radius among the following is

Q. The atom of smallest atomic radius among the following is

 3173  218 J & K CETJ & K CET 2009Classification of Elements and Periodicity in Properties Report Error

Solution:

When we move from left to right in the Periodic Table, atomic radius decreases. While in a group atomic radius, increases from up to down. Moreover, the radius of alkali metals is metallic radius and that of halogens is covalent radius and metallic radius > covalent radius. Thus, Br has the smallest atomic radius.