Molecular Bonding Theories
Modern bonding theories such as VBT, LFT, and MO Theory assumes that bonds are formed by atoms sharing electrons in directional orbitals. This by all accounts represents reality accurately. A more simplified or primitive model such as VSEPR Theory presupposes no orbital directionality. CFT actually treats electrons of the two atoms as repulsive as the two atoms attract electrostatically. However, VSEPR Theory and CFT are widely considered the simplest and historic ways to introduce molecular structure and d-orbital splitting to students. As a result, material based on these theories is still included in most courses and most standardized tests.
Read more about this topic: Chemical Bonding Model
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