@FanOfMostEverything There already was - Alicorn Faust for bromine.
 
Since technetium’s longest-lived isotope has a half-life of only several million years you would expect it to have all decayed in older stars - but no! Red giants have been detected with Tc-98, which is another piece of evidence for stellar nucleosynthesis.

@Ferrotter
 
Learn something new every day c:
 
There are times when Tl;Dr can be appropriate, and times when they’re not.

It’s also used in gamma camera studies. Its metastable form Tc99m has a very short halflife, and gives off a very high energy gamma ray, so it can be injected in tiny amounts and still give a good image. A huge fraction of the atoms will emit a gamma ray photon within a short period of time, and that photon has a very high probability to penetrate out of the body to reach the camera, rather than irradiate the body itself. And what’s left will decay to background in hours rather than contaminate the patient’s home for weeks like I125.
 
Metastable emission is a fascinating process. It’s not radioactive decay, but more like the proton/neutron equivalent of what fluorescence is for electrons. However, the orbits protons and neutrons wind around each other in are more complex and 100X more compressed than electron orbitals, so the energy level is orders of magnitude higher than a little glow in the dark toy’s optical photon.
 
There’s a possibility that some even higher-energy metastable nuclei like that of Hafnium can be stimulated to emit gamma photons only when needed, creating a battery (or, it’s worried, a bomb) that’s almost completely non-radioactive and safe to handle when it’s off, but will have around 10% the power of an equivalent nuclear mass when activated. That’s still hundreds of times more powerful per gram than the best possible chemical-based fuels or explosives. Or you could use hafnium to make a dirty bomb that’s transportable. (“Real” dirty bombs aren’t an actual threat. The amount of radioactive material you’d need to pack in one to make it dangerous after it blew up and spread the isotopes around, means it would kill the terrorist carrying it before he could take it anywhere. Unless the bomb had so much shielding that it would take a truck to move it. In which case, that mass of explosives would do far more damage than the tiny dirty bomb inside the shielding, and for far less cost.)

Aww, I was hoping there’d be an OC for the lightest non-naturally occurring element.