HP-41: The Periodic Table of Chemical Elements

Have your HP-41 right where it should be (in your hand) and unable to find the Internetz to look up nifty details of obscure chemical elements? Worry no more, the solution is here, the HP-41 program, “PERIOD”.

14LaAc_periodic_table_IIb

The program will display:

  • Atomic number, Name and Symbol
  • Group, Period and Block
  • Atomic Weight
  • Property (Alkali metal, Noble Gas, etc.)
  • Type (Gas, Liquid, Solid or Unknown)
  • Occurrence in nature (Primordial, From Decay, Synthetic)
  • Melting Point, Boiling Point (in Kelvin)
  • Year of discovery (“OLD” if known in ancient times)
  • Electron Configuration
  • Atomic Radius (empirical and calculated)
  • Origin (Big Bang, Cosmic Rays, Small & Large Stars, Large Stars, Large Stars & Super Nova, Super Nova and Man Made)

You will find the ROM pages, program listing and element details on the Github project page. It is also included in the HP Museum’s “HP-41C Software Library“. Enjoy 🙂

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