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Promethium 145 has a half life of 17.7 years.

Promethium 146 has a half life of 5.53 years.

Promethium 147 has a half life of o.22 years.

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5mo ago

The half-life of promethium-145 is approximately 17.7 years. Promethium-147 has a half-life of about 2.62 years.

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Q: What is the half life of promethium?
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Related questions

What two 'light' elements have no stable nonradioactive isotopes?

The two elements are elements 43, Tc, technetium, and 61, Pm, promethium. Technetium has a few "nearly stable" isotopes with half-lives of over a million years. Promethium's longest lived isotope has a half-life of about 20 years.


What substances are in promethium bromide?

Promethium bromide contain promethium and bromine.


Is Promethium magetic?

Yes, Promethium is a radioactive element that is paramagnetic, meaning it is weakly attracted to magnetic fields.


Is promethium flamable?

Promethium is not flammable.


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 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 soluble?

Promethium is not soluble in water.


What is the normal stage of promethium?

Promethium is a metal.


Is promethium a solid?

Yes. Promethium is a solid.


Is promethium a flamable element?

Promethium is not flammable.


Does promethium have protons?

Promethium has 61 protons.


What is the normal phase of promethium?

Promethium is typically a solid at room temperature, specifically a metal.