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What element was discovered first hydrogen or promethium?
Hydrogen was discovered first in 1766, while promethium was discovered much later in 1945.
What is the physical state of promethium at room temperature?
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.
Is promethium representative or transition element?
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.
What are the physical and chemical properties of promethium?
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.
How much is promethium per pound?
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.
What element was discovered first hydrogen or promethium?
Hydrogen was discovered first in 1766, while promethium was discovered much later in 1945.
What is the literal meaning of proton?
it is related to hydrogen and hydrogen came first
When was promethium discovered?
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...
What substances are in promethium bromide?
Promethium bromide contain promethium and bromine.
Is promethium flamable?
Promethium is not flammable.
Is Promethium magetic?
Yes, Promethium is a radioactive element that is paramagnetic, meaning it is weakly attracted to magnetic fields.
What are three compounds containing promethium?
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.
Is promethium a solid?
Yes. Promethium is a solid.
Is promethium a flamable element?
Promethium is not flammable.
What is the normal stage of promethium?
Promethium is a metal.
Does promethium have protons?
Promethium has 61 protons.
Is promethium soluble?
Promethium is not soluble in water.
