HELP PLSSS WOOT WOOT

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds