From the archive · #239

A little curiosity.
From the archive.

Five flashcards. A fresh discovery. Your moment to get a little more out of the world.

August 27, 2026Chemical Symbols and Atomic NumbersNo account needed · No timer
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Prompt: the element Se · atomic number
ScienceA little curiosity
Atomic number · RECALLthe element Se · atomic numberThink it. Then flip it.
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Explore the archive ↗
See these five prompts
  1. 01the element Se · atomic number
  2. 02the element Nb · atomic number
  3. 03the element Cd · atomic number
  4. 04the element Cs · atomic number
  5. 05the element Sm · atomic number