{"type":"rich","version":"1.0","title":"Element Classification Challenge","description":"Activity where students sort chemical elements into their respective groups on the periodic table: Alkali Metals, Halogens, Noble Gases, and Transition Metals.","author_name":"Padlet TA","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1767922009228&hashid=WvKPmem0rg","html":"<iframe src=\"https://arcade.padlet.com/embed/WvKPmem0rg\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}