Which conclusion could be made from ernest rutherford’s gold foil experiment?
atoms are made up of mostly empty space.
atoms are mainly solid and block alpha particles.
the volume of the nucleus is large compared to the rest of the atom.
the mass of the nucleus is small compared to the rest of the atom.

The correct answer is: The volume of the nucleus is large compared to the rest of the atom. This was an experiment where scientists discovered that every single atom contains a nucleus. In their discovery they found out that the nucleus contains positively charged particles and that most of the mass of the atom is concentrated within the nucleus.

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later