{"type":"rich","version":"1.0","title":"核崩壊の式","description":"生徒が核崩壊の式を完成させる穴埋め形式のアクティビティです。例えば、ウラン-238がα崩壊を起こすと、トリウム-___が生成されます。生徒は空欄に234をドラッグします。","author_name":"Padlet TA","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1768602703945&hashid=kGpzVVx8pv","html":"<iframe src=\"https://arcade.padlet.com/embed/kGpzVVx8pv\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}