where can i find your source for that ionic radius?

I don’t have direct access to external sources or databases, but I can guide you on where to find information about ionic radii. You'll typically find reliable data in:

**Textbooks on Chemistry**: Many physical chemistry or inorganic chemistry textbooks provide tables of ionic radii.

**Scientific Journals**: Articles in journals like the Journal of the American Chemical Society or Inorganic Chemistry may present detailed studies on ionic sizes.

**Online Databases**: Websites such as the CRC Handbook of Chemistry and Physics or the NIST (National Institute of Standards and Technology) may have compiled data for ionic radii.

**Educational Websites**: Academic institutions often provide resources that include periodic tables with ionic radii.

**Chemistry Software**: Computational chemistry software or molecular modeling tools often come with built-in databases of atomic and ionic radii.

If you're looking for specific ionic radii for particular ions, please let me know, and I can provide general values based on common knowledge!