A brief visual history of the periodic table by Kerline Stavien https://padlet.com/kerlinestavien/fx9bgxvz5n7n Made with an open mind en-us 2019-02-22 13:08:49 UTC 2025-12-15 17:00:15 UTC hello@padlet.com Elements kerlinestavien https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334109168 Elements are represented throughout by their abbreviations even before those abbreviations were conceived ]]> 2019-02-22 13:17:25 UTC https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334109168 Ancient Times kerlinestavien https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334109599 Several  of the elements in the periodic table have been known in mostly pure form since ancient times  ]]> 2019-02-22 13:19:01 UTC https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334109599 The Iron Age kerlinestavien https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334112505 They found a chemical discovery that metallic iron could be recovered from its ore by heating with carbon ]]> 2019-02-22 13:28:04 UTC https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334112505 Some substances not yet understood kerlinestavien https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334113759 The idea was these were fundamental elements underlying all other substance was not yet clearly understood ]]> 2019-02-22 13:31:18 UTC https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334113759 1669 Henning brand's kerlinestavien https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334115940 2019-02-22 13:37:14 UTC https://padlet.com/kerlinestavien/fx9bgxvz5n7n/wish/334115940