Periodic System for Chemists

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Thulium series_id

Tm - Atomic Number 69

series_id
9

About the series_id

Chemical series or category (alkali metals, noble gases, etc.).

Related Properties

BlockPeriod

iPhone & iPad

Your periodic table, always with you.

  • Access element data offline, in the lab or in class.
  • Find elements quickly by name, symbol, or atomic number.
  • Save favorite elements and add your own notes.
Published App Store screenshots: periodic table, element details, and search (English).