-Positively charged nucleus
-Empty spaced
-Dense core
I think the answer might be B but i’m not positive
When a material is heated, the kinetic energy of that material increases and its atoms and molecules move about more. This means that each atom will take up more space due to its movement so the material will expand. ... Some metals expand more than others due to differences in the forces between the atoms / molecules.
The change in energy is is known as work-energy
