{"type":"rich","version":"1.0","title":"1.1 Atomic structure","provider_name":"Coggle","provider_url":"https://coggle.it","thumbnail_url":"https://static.coggle.it/diagram/aiO7Xl9kqS7v3zYn/thumbnail","width":1920,"height":1200,"html":"<iframe width=\"1920\" height=\"1200\" src=\"https://embed.coggle.it/diagram/6a23bb5e5f64a92eefdf3627\" frameborder=\"0\" allowfullscreen></iframe>"}