The molecular geometry of methane - CH 4 - is tetrahedral with symmetric charge distribution on the central atom. For homework help in math, chemistry, and physics: www.tutor-homework.com. It is a colourless, flammable gas. Answer Save. 3 0. Finding CH 4 molecular geometry using VSEPR theory is not very difficult using these three steps.. CH4 (methane) has tetrahedral molecular geometry. The main reason that both molecules have different melting points is that CHCl3 is much heavier than CH4. Step 1: Draw the Lewis structure for CH 4 using the âeasyâ method where you calculate the total valence electrons in the molecule to determine the Lewis structure.. C: 4 H: 1×4=4. Methane is produced naturally from rotting vegetation in marshes. In NH3 and H2O there are 1 and 2 lone pairs, respectfully, so more repulsion exists between the bond and lone pairs, as a result, the bond angels are less than 109.5. Still have questions? Therefore this molecule is non-polar. 10 years ago. Bent Linear Tetrahedral Pyramidal? Remember that hydrogen atoms always go on the outside of a Lewis structure and that they only need two valence electrons for a full outer shell. ... if molecular shape is symmatrical then its non-polar but if it is non symmatrical then its polar. Methane (CH4) - Methane is the simplest hydrocarbon with the molecular formula CH4. Top Answer. CH4 is a nonpolar molecule as it has a symmetric tetrahedral geometrical shape with four identical C-H bonds. Which of the following is the correct molecular shape of CH4? Total=8. For CH 4 you have a total of 8 total valence electrons.. Relevance. See Answer. Drawing the Lewis structure for CH 4 (named methane) requires only single bonds.It's one of the easier Lewis structures to draw. Favorite Answer. Methane, CH4 molecules are tetrahedral. Methane (CH 4) is a ... tend to take on a trigonal-planar shapeâa central atom surrounded by three atoms arranged in an equilateral triangle. The central carbon in the compound is sp3 hybridized, meaning that one s and three p orbitals âhybridizeâ to form four resultant sp3 orbitals. CHCl3 and CH4 have the same tetrahedral shape. Methane(CH4) has for equivalent C - H bones distributed equally in space, hence its shape is tetrahedral. Get your answers by ⦠The position of the terminal atoms in a triangle minimizes the electrostatic repulsion of the valence electrons in the terminal atomsâ outer shells. Drawing the Lewis Structure for CH 4. Back to Molecular Geometries & Polarity Tutorial: Molecular Geometry & Polarity Tutorial. 23 24 25. The electronegativity of carbon and hydrogen is 2.55 and 2.2, respectively, which causes the partial charges to be almost zero. Asked by Wiki User. CH4 has no lone pairs of Electrons on the central atom so the optimal molecular shape would be tetrahedral with bond angels of 109.5. 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