What is the angle between electron groups in the trigonal planar electron geometry?

Question

Quizplus · Accepted Answer

The trigonal planar electron geometry has three electron groups around the central atom. These electron groups will arrange themselves as far apart from each other as possible to minimize electron repulsion. The only way to do this is to form an equilateral triangle, which has angles of 120° between each vertex. Therefore, the angle between electron groups in the trigonal planar electron geometry is 120°.

What Is the Angle Between Electron Groups in the Trigonal