A few facts about Silicon and Silicone which help explain the differences between the two and why it's so widely used.
Silicon vs Silicone: What's the Difference?
Difference between Silicon, Silica & Silicone
Silicone Adhesive: What Is It? How Does It Work? Types Of
How do silicone and rubber differ? - Quora
What is Synthetic Rubber?
Polyurethane Sealant - Difference Between Silicone & Polyurethane
Difference Between Silicone and Siloxane
2004 Shows & Notes
What is Synthetic Rubber?
What's the difference between silica, silicone, and silicon? - Quora