Question

why silicon cannot form long chains like carbon?​

Answer 1

Answer:

Si has the same valence configuration that carbon does, and can form chains. But because Si is heavier and the valence electrons it has are further from the nucleus and shielded by inner electrons, the bonds aren't as strong.

Answer 2

Answer:

Si has the same valence configuration that carbon does, and can form chains. But because Si is heavier and the valence electrons it has are further from the nucleus and shielded by inner electrons, the bonds aren't as strong.