Promethium is the only lanthanide that is radioactive and does not have stable isotopes. It is also challenging to study due to its radioactivity. Additionally, promethium has unique chemical properties compared to other lanthanides.
Promethium itself does not have a distinct odor as it is a rare earth metal. However, some of its compounds may have a metallic smell when they react with other chemicals.
Yes, Promethium is a radioactive element that is paramagnetic, meaning it is weakly attracted to magnetic fields.
58: Cerium59: Praseodymium60: Neodymium61: Promethium62: Samarium63: Europium64: Gadolinium65: Terbium66: Dysprosium67: Holmium68: Erbium69: Thulium70: Ytterbium71: Lutetium
Promethium is typically a solid at room temperature, specifically a metal.
Yes, promethium is flammable. It can ignite spontaneously in air and react with oxygen to produce heat and flames. Special precautions are necessary when handling promethium to prevent accidental fires.
The lanthanides, but it does not fit in as well
Some lanthanides are radioactive, such as promethium. However, most lanthanides found in nature are stable.
This family of elements is called after IUPAC rules - lanthanoids.
Most of the lanthanides are silvery-gray metals. Check the Related Links section for pictures of all of them.
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
Promethium (Pm) Apex
Promethium has similar chemical properties as cerium and other lanthanoids.
Promethium is today the unique name for this chemical element.
Yes, Promethium, element 61 is a metal just like the other members of the lanthanide group. Kilogram quantities of the material have been prepared and the metal purified in a method similar to the preparation of several other lanthanides, calcium reduction (calciothermic reduction) with a second vacuum distillation step to remove calcium (reducing agent) and magnesium (crucible material) impurities.
Of course: promethium is separated from other fission products of uranium etc.
Elements from atomic number 57 (Lanthanum) to 71 (Lutetium) are called the Lanthanides. Lanthanide means "like Lanthanum" and so, the Lanthanides are based on Lanthanum. Only one of the Lanthanides is radioactive: Promethium (Pm - No. 61)
Promethium itself does not have a distinct odor as it is a rare earth metal. However, some of its compounds may have a metallic smell when they react with other chemicals.