Answer: In Valence Shell Electron Pair Repulsion ( VSEPR ) theory , pairs of electrons that surround the central atom of a molecule or ion are arranged as far apart as possible to minimise electron-electron repulsion. Decide which is the central atom in a molecule. .. Explanation: In CH4, the central atom is C, which is in sp3 hybridization state. The four H-atoms are situated at the four corners of the tetrahedron. The bond angle between H—C—H is 109.5°, which is called the tetrahedral ... The electron pair geometry around the atom in octahedral. The shape of both and according to VSPER theory is attached below. Hence according to VSPER theory , the shape of is trigonal pyramidal and is octahedral. To learn more about the concept please go through the links brainly.in/question/9122437 brainly.in/question/17788165 #SPJ1 Learn more about VSEPR theory here - brainly.in/question/7528668 Learn more about VSEPR सिद्धांत उदाहरण here- brainly.in/question/25952485 The shape of molecules may be predicted using the Valence Shell Electron Pair Repulsion Theory ( VSEPR theory ). The foundation of the VSEPR theory is the idea that all atoms have a repulsion between their pairs of valence electrons, and that atoms naturally organize themselves to reduce this repulsion as much as possible.