Question

What happens to atomic level with object recieving sound

Answer 1

Answer:

can't be summarized

Explanation:

The wavelength of sound waves in a solid is much greater than the dimensions of atoms. For example the speed of sound in steel is 6100m/sec, so the note middle C (262Hz) has a wavelength of about 23 metres. Sound waves are collective motions of a vast number of atoms, and it isn't especially helpful to think of them as being generated by atom scale phenomena.

Because, as you mention in your question, atoms don't have a sharp edge, in a solid like steel atoms can be pushed together slightly and pulled apart slightly. This gives the solid some elasticity, and this elasticity allows compressions waves (i.e. sound waves) to travel through the solid.