Geometry in BeCl₂ & BF₃: A VSEPR Theory Perspective

The video tutorial explains the classification of molecules based on the presence of lone electron pairs on the central atom. It introduces the general formula ABX, where A is the central atom and X is the number of B atoms attached. The tutorial predicts the shapes of AB2 and AB3 molecules, using beryllium chloride and boron trifluoride as examples. AB2 molecules like beryllium chloride have a linear shape with a bond angle of 180°, while AB3 molecules like boron trifluoride have a trigonal planar shape with a bond angle of 120°.

How do electron pairs in a molecule influence its stability?

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Explain the significance of the inter bond angle in AB2 and AB3 type molecules.

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