  A relativistic system of electrically charged fermions and oppositely charged
massive scalars with no self-interactions, is argued to have a long-lived
collective state with a net charge. The charge is residing near the surface of
the spherically-symmetric state, while the interior consists of the condensed
scalars, that are neutralized by the fermions. The metastability is achieved by
competition of the negative pressure of the scalar condensate, against the
positive pressure, mainly due to the fermions. We consider such metanuclei made
of helium-4 nuclei and electrons, below nuclear but above atomic densities.
Typical metanuclei represent charged balls of the atomic size, colossal mass,
electric charge and excess energy. Unlike an ordinary nucleus, the charge of a
metanucleus scales proportionately to its radius. The quantum mechanical decay
through tunneling, and vacuum instability via pair-creation, are both
suppressed for large values of the electric charge. Similar states could also
be composed of other charged (pseudo)scalars, such as the pions, scalar
supersymmetric partners, or in general, spin-0 states of new physics.
