Hydrogen as the atomic number 1 and promethium has the atomic number 61.
Hydrogen was discovered first in 1766, while promethium was discovered much later in 1945.
The radioactive metal, Promethium, is a solid at room temperature and standard pressure. It becomes a liquid at 1040ºC and a gas or vapor at 3000ºC.
Promethium is a transition element. It is the only element in the lanthanide series that is radioactive and does not occur naturally on Earth. Its atomic number is 61, and it is commonly used in nuclear batteries and research applications.
After the Pauling electronegativity (1,13) promethium is a reactive metal but the chemistry of Pm is only superficially known.The valence of ions in solution is +3. Promethium compounds known: halides, oxides, nitrates, sulfates, hydroxides etc.
Promethium is a rare earth metal and it is not commonly traded in pound units. Pricing for promethium can vary depending on the source and market conditions. It is typically priced per gram or kilogram rather than per pound.
Hydrogen was discovered first in 1766, while promethium was discovered much later in 1945.
it is related to hydrogen and hydrogen came first
It was first discovered by Jacob A. Marinsky, along with a few other scientists in 1944. But he did not make his claim of Promethium until 1946. The place Promethium was first discovered is still unknown to me...
Promethium bromide contain promethium and bromine.
Promethium is not flammable.
Yes, Promethium is a radioactive element that is paramagnetic, meaning it is weakly attracted to magnetic fields.
Promethium salts, oxides, and halides are common compounds of promethium. Promethium oxide (Pm2O3) and promethium chloride (PmCl3) are among the compounds that can be formed with promethium.
Yes. Promethium is a solid.
Promethium is not flammable.
Promethium is a metal.
Promethium has 61 protons.
Promethium is not soluble in water.