Question

Silicate having one monovalent corner oxygen atom in each tetrahedral unit

Answer 1

The silicate structures are the tetrahedron silicon - oxygen (SiO4)4-. They are surrounded by 4 oxygen atoms and consists of  

consists of a several central silicon atom in the shape of a tetrahedron which they are surrounded by four oxygen atoms.

Silicates contains Si2O76 ions which is formed by joining the 2 tetrahedral (SiO4)4-. Which is used to share one oxygen atom at one corner.  These tetrahedral SiO4 units can share and connect oxygen atoms in a variety of ways, resulting in different structures.

Answer 2

Answer:

Explanation:

Pyro silicates (or Soro silicates) contain $Si_2O_7^{6-}$ ions which are formed by joining two tetrahedral $SiO_4^{4-}$ which share one oxygen atom at one corner (one oxygen is removed while joining).