The atomic number of tellurium is 52 and the atomic number of iodine is 53, so these elements are in the correct order in the modern periodic table.

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

Dramatic changes in physical properties occur on descending group 16 of the periodic table ... and the in-between elements, sulfur, selenium and tellurium, are all solids that show increasing ...