Thulium (Tm)
Element number 69, from the lanthanides family.
Thulium facts
- Symbol
- Tm
- Atomic number
- 69
- Atomic mass
- 168.93
- Family
- Lanthanides
- Period
- 6
- Group
- f-block (no group)
What does thulium react with?
Thulium makes a new substance with 10 other elements and chemicals in our lab:
- Thulium + HydrogenThulium hydride Tm + H₂ → TmH₂ · When heated · Try it
- Thulium + NitrogenThulium nitride 2Tm + N₂ → 2TmN · Only when heated very strongly · Try it
- Thulium + OxygenThulium oxide 4Tm + 3O₂ → 2Tm₂O₃ · When heated · Try it
- Thulium + FluorineThulium fluoride 2Tm + 3F₂ → 2TmF₃ · At room temperature · Try it
- Thulium + SulfurThulium sulfide 2Tm + 3S → Tm₂S₃ · When heated · Try it
- Thulium + ChlorineThulium chloride 2Tm + 3Cl₂ → 2TmCl₃ · When heated · Try it
- Thulium + BromineThulium bromide 2Tm + 3Br₂ → 2TmBr₃ · When heated · Try it
- Thulium + IodineThulium iodide 2Tm + 3I₂ → 2TmI₃ · When heated · Try it
- Thulium + WaterThulium hydroxide + hydrogen gas 2Tm + 6H₂O → 2Tm(OH)₃ + 3H₂ · At room temperature · Try it
- Thulium + Hydrochloric AcidThulium chloride + hydrogen gas 2Tm + 6HCl → 2TmCl₃ + 3H₂ · At room temperature · Try it
It also blends into a mixture, like an alloy, with 73 other metals when melted together.
Nothing happens when it's simply mixed with 15 of the others. 21 pairings have never been tried, because not enough atoms have ever existed.