I cannot say for certain which day
I became the familial isotope,
but I know my parents began
accreting neutrons not long
after their marriage, bound
to their mutual core, unbound
from me, adopted into the family,
and I then became the isotope
of the family but remote,
easily enough forgotten,
when I was not present.
That is, I suppose, one possible
fate for an isotope, it’s familial
half-life up and then forgotten.

But perhaps it was just
that I was the family’s
Schrödinger’s cat, finally put
in a box into which
no one chose to look.