What is the size of the carbonate ion?

The carbonate ion (CO₃²⁻) has a trigonal planar shape and an approximate bond length of about 1.28 Å (angstroms) for the carbon-oxygen bonds. The overall size of the ion can be described by its radius, which is roughly 1.34 Å. Its dimensions reflect the arrangement and distances between its constituent atoms, contributing to its stability and reactivity in various chemical contexts.