The molecule SiH4 has the silicon atom in the center (naturally) and the four hydrogen atoms are arranged very symmetrically at the corners of a tetrahedron, surrounding the silicon atom. Each hydrogen atom shares its single electron with the silicon, and the silicon shares its four valence electrons evenly with the four hydrogen atoms.
tetrahedral
I'm unsure what the electron pair geometry is but the molecular geometry is Trigonal Planar.
electron pair geometry: octahedral molecular geometry: octahedral
Tetrahedral.
octahedral
tetrahedral
The electron pair geometry for CS2 is Linear.
I'm unsure what the electron pair geometry is but the molecular geometry is Trigonal Planar.
electron pair geometry: octahedral molecular geometry: octahedral
the electron pair geometry would be trigonal planar because there is a lone pair on the oxygen atom. The molecular pair geometry would be bent
Tetrahedral.
The electron-domain geometry of PF6 is Octahedral, since the central atom Phosphorus has an electron pair geometry which is octahedral
Trigonal Bipyramidal
octahedral
Linear
The electron pair geometry of ammonia is tetrahedral, with one lone pair and three bonded pairs around the central nitrogen atom.
electron-pair geometry is octahedral with no LPs and the molecule geometry is octahedral