PBS Space Time has a very good & informative episode covering this. I'll try to dig it up. Most elements are missing some key properties that carbon has. Sili

PBS Space Time has a very good & informative episode covering this. I'll try to dig it up. Most elements are missing some key properties that carbon has. Silicon is the next most-likely element, but it's still missing out on a few properties that carbon has. Here: https://www.pbs.org/video/what-if-alien-life-were-silcon-based-xijric/ https://www.pbs.org/video/what-if-alien-life-were-silcon-bas... Or on YouTube: https://www.youtube.com/watch?v=469chceiiUQ https://www.youtube.com/watch?v=469chceiiUQ