the observation's with gold foil are :
1. he saw that all most all the alpha particles pass straight through the gold foil.
2. only some of the alpha particles got deflected in very small angles.
3. rarely a only few got deflected by the larger angles.
4. because of the space inside the atom all most all particles pass through gold foil.
the observations with other metals :
the alpha particles may or mat not pass though the metal. but I guess they can pass through the metal because of the space inside the atom. I can say this because of the experiment carried by the Ruther ford. so I think the particles may not scatter and just pass through the metal.