No.

Name

Structure

1

Single isolated tetrahedron [SiO₄]⁴⁻

2

A group of three tetrahedrons connected in a ring [Si₃O₉]⁶⁻

3

A group of six tetrahedrons linked in a ring [Si₆O₁₈]¹²⁻

4

Tetrahedron layer of [Si₂O₅]²⁻

5

Tetrahedron framework [SiO₂]

6

Single chain tetrahedron [SiO₃]