as well as the legacy of past iodine deficiency. Here are a few juicy nuggets about element number 53 on the periodic table, and its extraordinary uses. Seaweed, plankton, bacteria and some simple ...

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.

iodine ; sulphur, selenium, tellurium). Dobereiner's 'triads' passed unnoticed at the time, and only after Newlands' 'law of octaves' and Mendeleef's Periodic Law had been enunciated some fifty ...