Daily Challenge Day to Day 217

Location
Switzerland
Name
Matt
Start Date
Jan 3, 2021
End Date
Jan 3, 2021
At, Bi, Po, Pa, Ra, Rd, Th, U - all of these elements sport a radioactive isotope with 217 protons and neutrons in their respective nuclei ...

Following that lead, I also found this:


Could be worse ...

M.
 
P1015673.3.jpg
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Don't say Corona lock-in-or-out doesn't also have its cozy sides !
(in-camera double exposure)
 
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