Can an Antiproton Replace an Electron in a Heavy Atom and Create a Stable Atom?

[Antiphon]

Is it possible to replace one of the electrons in a heavy atom like uranium with an Antiproton and form a stable atom?

 

[Drakkith]

I'm pretty sure that would be highly unstable.

 

[M Quack]

I also think it would be unstable. In the S state the orbital overlaps with the nucleus. Electrons have been replace with muons to form metastable atoms.

 

[chrisbaird]

Is it possible to replace one of the electrons in a heavy atom like uranium with an Antiproton and form a stable atom?

Don't forget that protons are much heavier then electrons, so from a mass perspective, the wavefunctions would be completely different. But also, antiprotons would annihilate the first protons they came across, including in the nuclei, and even stable wavefunction states overlap with the nucleus, which is what M Quack is getting at. An antiproton bound to an antielectron (antihydrogen) is stable.