In 1966, Canadian chemist Paul-Antoine Giguère published a three-dimensional version of the Periodic Table of the Elements. 1 I wondered if anyone had made a 3D-printable version of Giguère's periodic ...

This resource provides two high-quality printable images of the Periodic Table of Elements for KS3 and KS4. There are two versions to suit different teaching needs: one with clearly defined coloured ...

the number of circles in the electronic configuration of an element is represented in the periodic table as the period number that element is situated in the number of electrons in the outermost ...

Early periodic tables were incomplete, since many elements were unknown. Also, some elements were placed in groups with elements that were not similar to them. Mendeleev left gaps in his table for ...