The second most abundant element on Earth, silicon is found in everyday materials like sand, clay, granite, and many minerals. As a raw material, it is extremely useful. Some products are built from silicon in its elemental state. For example, a small wafer of highly purified silicon is found in virtually every computer. Typically, silicon is processed in a number of ways to create a huge family of products, including building materials, lubricants, silicone sealants, and silicone adhesives.
Silicones represent a huge group of products that share useful common traits like stability at high temperatures and resistance to age, sunlight, moisture, temperature extremes, and exposure to chemicals.
The aim of the question is to know:Whether Stable elements were formed from unstable actinides and langthinides or the other way from stable H,He to lanthinides and actinides etc.