  We address the nature of the disordered state that results from the
adsorption of adatoms in graphene. For adatoms that sit at the center of the
honeycomb plaquette, as in the case of most transition metals, we show that the
ones that form a zero-energy resonant state lead to Anderson localization in
the vicinity of the Dirac point. Among those, we show that there is a symmetry
class of adatoms where Anderson localization is suppressed, leading to an
exotic metallic state with large and rare charge droplets, that localizes only
at the Dirac point. We identify the experimental conditions for the observation
of the Anderson transition for adatoms in graphene.
