Lutetium (Lu)
Element number 71, from the lanthanides family.
Lutetium facts
- Symbol
- Lu
- Atomic number
- 71
- Atomic mass
- 174.97
- Family
- Lanthanides
- Period
- 6
- Group
- f-block (no group)
What does lutetium react with?
Lutetium makes a new substance with 10 other elements and chemicals in our lab:
- Lutetium + HydrogenLutetium hydride Lu + H₂ → LuH₂ · When heated · Try it
- Lutetium + NitrogenLutetium nitride 2Lu + N₂ → 2LuN · Only when heated very strongly · Try it
- Lutetium + OxygenLutetium oxide 4Lu + 3O₂ → 2Lu₂O₃ · When heated · Try it
- Lutetium + FluorineLutetium fluoride 2Lu + 3F₂ → 2LuF₃ · At room temperature · Try it
- Lutetium + SulfurLutetium sulfide 2Lu + 3S → Lu₂S₃ · When heated · Try it
- Lutetium + ChlorineLutetium chloride 2Lu + 3Cl₂ → 2LuCl₃ · When heated · Try it
- Lutetium + BromineLutetium bromide 2Lu + 3Br₂ → 2LuBr₃ · When heated · Try it
- Lutetium + IodineLutetium iodide 2Lu + 3I₂ → 2LuI₃ · When heated · Try it
- Lutetium + WaterLutetium hydroxide + hydrogen gas 2Lu + 6H₂O → 2Lu(OH)₃ + 3H₂ · At room temperature · Try it
- Lutetium + Hydrochloric AcidLutetium chloride + hydrogen gas 2Lu + 6HCl → 2LuCl₃ + 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.