What geometric shape is NH4+?
What geometric shape is NH4+? The 3-dimensional geometrical structure of ammonium, NH4+ is referred to as Tetrahedral. What is the geometric shape of ammonium? The ammonia molecule has a trigonal pyramidal shape with the three hydrogen atoms and an unshared pair of electrons attached to the nitrogen atom. Why does NH4+ have a tetrahedral shape? Ammonia, NH Nitrogen is in group 5 and so has 5 outer electrons. Each of the 3 hydrogens is adding another electron to the nitrogen's outer level, making a total of 8 electrons in 4 pairs. The electron pairs arrange themselves in a tetrahedral fashion...