What happens at the atomic level when a metal is subjected to pressure, such as a blow from a hammer? Valence electrons transfer permanently from one metal atom to another.

The metal cations easily slide past one another.

Valence electrons travel from one end of the metal to the other.

The metal cations are pushed together, and the crystal shatters.​

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

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