Where is contact made during collisions?

[francirp]

If two objects collide with each other, where is contact actually made? This question confuses me because even at the atomic level (two atoms colliding) where is contact made? P.s. i hope I'm in the right section of the forum

 

[daniel_i_l]

the collision impulse between the atoms is because of the electormagnetic repulsive forces between them.

 

[francirp]

ahh i see, thank you.