Promethium (Pm)
Element number 61, from the lanthanides family.
Promethium facts
- Symbol
- Pm
- Atomic number
- 61
- Atomic mass
- 145
- Family
- Lanthanides
- Period
- 6
- Group
- f-block (no group)
What does promethium react with?
Promethium makes a new substance with 7 other elements and chemicals in our lab:
- Promethium + OxygenPromethium oxide 4Pm + 3O₂ → 2Pm₂O₃ · Only in a special nuclear lab (it is radioactive) · Try it
- Promethium + FluorinePromethium fluoride 2Pm + 3F₂ → 2PmF₃ · Only in a special nuclear lab (it is radioactive) · Try it
- Promethium + ChlorinePromethium chloride 2Pm + 3Cl₂ → 2PmCl₃ · Only in a special nuclear lab (it is radioactive) · Try it
- Promethium + BrominePromethium bromide 2Pm + 3Br₂ → 2PmBr₃ · Only in a special nuclear lab (it is radioactive) · Try it
- Promethium + IodinePromethium iodide 2Pm + 3I₂ → 2PmI₃ · Only in a special nuclear lab (it is radioactive) · Try it
- Promethium + WaterPromethium hydroxide + hydrogen gas 2Pm + 6H₂O → 2Pm(OH)₃ + 3H₂ · Only in a special nuclear lab (it is radioactive) · Try it
- Promethium + Hydrochloric AcidPromethium chloride + hydrogen gas 2Pm + 6HCl → 2PmCl₃ + 3H₂ · Only in a special nuclear lab (it is radioactive) · 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 18 of the others. 21 pairings have never been tried, because not enough atoms have ever existed.