Question

Does a Lewis structure tell which electrons come fromwhich atoms? Explain.

Short answer

Answer

Lewis structure does not tell which electrons come from which atoms. The limitations are given in steps.

Step-by-step solution

 Define the lewis structure

The lewis structure is the representation of a molecule using dot and bond-linestructure. This representation helps to easily create structures of molecules. In lewis's structure, the atom should follow the octet rule. Octet rule means valence orbit has eight electrons.

Ex., F needs 1 electron to complete its octet. Then it shares an electron with another to form an F₂ molecule. F₂is a stable molecule.

Limitations of the lewis structure

(a) The resonating structures give us the real movement of bonds and electrons. Lewis's structure is unable to provide this information.

(b) The lewis structure denotes the pi bond is along with the sigma which is not.

(c) The electron pair does not movein the lewis structure.