Do we have the technology to observe such elements if they could even possibly exist? I'd guess they'd be the sort of ephemera that would take a gazillion eV to form, then would decay a femtosecond later.[0] If so, creating an atom in the lab may be outside our engineering skills today.
[0] Not a physicist. Not your physicist. Not FDA approved medical advice.
However, the specific isotopes made in the r-process are very neutron rich, right up to the neutron drip line, and I don't believe we've made many of them.
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Do we have the technology to observe such elements if they could even possibly exist? I'd guess they'd be the sort of ephemera that would take a gazillion eV to form, then would decay a femtosecond later.[0] If so, creating an atom in the lab may be outside our engineering skills today.
[0] Not a physicist. Not your physicist. Not FDA approved medical advice.
We've made elements up to mass number 294.
https://en.wikipedia.org/wiki/Superheavy_element
However, the specific isotopes made in the r-process are very neutron rich, right up to the neutron drip line, and I don't believe we've made many of them.