Tetrahedral, just like methane.
The 'Si' (Silicon) is immediately below Carbon in Group 4. So it behaves very similarly to carbon . Silicon , like carbon has four outer most electrons in its outer energy shell , so it will make four bonds. One each to each of the Bromines (Br).
Silicon like carbon has the ability to catenate, that is form chains by bonding to itself. This feature is not as strong in silicon. The crystalline structure of sand ( silicon dioxide) is such that silicon bonds to itself and to oxygen.
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a shape is called a shape in mathematics
That shape is called a cylinder.That shape is called a cylinder.That shape is called a cylinder.That shape is called a cylinder.
An inscribed shape is inside a circumscribing shape.
A 2 dimensional shape such as a circle is NOT a solid shape, while a sphere is.
Cylindrical shape or Cylinder shape