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Isotopes of promethium haven't special names. Promethium has 38 isotopes and isomers, all radioactive.
Isotopes of all elements contain the chemical symbol of the element and:
- as a superscript, to left: the mass number of the isotope
- as a subscript, to left: the atomic number of the element
A correct symbol is not possible to be written on WikiAnswers window.
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Promethium has radioisotopes?
All promethium isotopes are radioactive.
What element does promethium change into after emitting beta particles?
Isotopes of promethium decay to isotopes of neodymium.
What is the non radioactive isotope of promethium?
All the isotopes of promethium are radioactive.
How many valence electrons does promethium have?
Promethium has nine isotopes, their numbers ranging from 143 to 151. None of the isotopes are naturally occurring, yet some stars have minute amounts of promethium.
Do lanthinides contain radioactive elements?
Yes, promethium, which is a lanthanide, has no stable isotopes.
What are other names for promethium?
Promethium is today the unique name for this chemical element.
Is promethium malleable?
Yes. Promethium is a rare earth metal and is found in the periodic table in the Lanthanide section. Its symbol is Pm and it has the atomic number 61. It was predicted to exist, but could not be found in the earth's crust. Promethium has no stable isotopes, and what ones it has are relatively short-lived. It was first isolated from spent nuclear fuel, and later discovered in ores of uranium, but only in the most minute quantities.
Is lathanides unstable?
Lathanides all lathanides have stable isotopes except promethium, promethium is also the only radioactive lathanide element, hope that helped.
How is promethium different from the other lanthanides?
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.
What are the three names of isotopes of hydrogen?
Hydrogen, Deuterium, Tritium
What element is memeber of this group all isotopes of this element are radioactive?
There is no group specified so it is not possible to be sure about this answer but all isotopes of promethium are radioactive.
Find one element on the chart that has no stable isotopes?
Technetium, Promethium, and all elements heavier then Bismuth.
