Ionic Radius of Thulium (Tm) [& Discovery, Color, Uses ... 2022

All atom's ions have an ionic radius, even Thulium. Ok so what is the ionic radius of a Thulium ion?

In the case of Thulium the ionic radius is 1.09 (+3) Å. Speaking of Thulium, let me walk you through some interesting details...

Thulium Facts

Thulium Ionic Radius

1.09 (+3) Ă…


Discovered By: Per Theodor Cleve
Year: 1879
Location: Sweden

Atomic Mass


Learn more about the atomic mass.


Radioactive thulium is used to power portable x-ray machines, eliminating the need for electrical equipment.


Found with other rare earths in the minerals gadolinite, euxenite, xenotime, and monazite. Monazite is often 50% rare earth by weight and 0.007% thulium.


Soft, malleable, ductile, silvery metal

Atomic Symbol


Name Origin

From Thule ancient name of Scandinavia.

State at 20 °C


Atomic Number


Learn more about the atomic number.

Want to learn more details and data about Thulium (Tm)? Check my Elements Comprehensive List.


Are you having trouble understanding the basics of atomic elements? This video will walk you through:
  • What is an element
  • What is a substance
  • What Elements look like
  • How a small number of atoms can be joined and form completely different substances

Colored Periodic Table

Need an editable periodic table to edit? Maybe add your school logo, work team or anything else to make your paper look cool?

Along with basic atom / element information (like Thulium ionic radius and all the other atomic data), it also comes with color coded info about: State (Gas, Liquid or Solid at room temperature), Groups/series details and much more...

How about an incentive to share this post? (You will help other colleagues find this blog)

Download and enjoy this complete and colored periodic table for you to edit and enjoy. It's in an editable excel format or .ods (open).
[lock][Download excel ##download##]
[Download open .ods format ##download##][/lock]


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