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.

Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table’s arrangement also allows scientists to discern trends in ...

There are currently 118 known elements on the periodic table, and we've put 20 of them below to create a brain game that ...

According to order of atomic weights iodine should come before tellurium ... Fajans we cannot only assign to each element its place in the Periodic Table, but also its atomic weight, as has ...

Up until this point the atomic number simply referred to an element’s positioning in the periodic table, and was not known to correspond to a measurable physical quantity. Thanks to Moseley’s work it ...

Click on the images below to automatically tweet the element infographics. Download the PDFs to make your own wall displays or education resources. We've also created a range of IYPT-themed, ...

Want to learn more about this centerpiece of chemistry? Take your pick from this collection of links about elements and the periodic table! Build an element ball, solve periodic puzzles, and check out ...

During the process, they discovered something unexpected about this particular f-block element on the periodic table that could help us understand transuranium elements more broadly as well as ...