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No. The most common isotope(s) of an element are often stable.
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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.
What element has all of their isotopes radioactive?
An example is uranium.
Is Pm a radioactive substance?
Pm is Prometheum. All isotopes of this element are radioactive.
Does Barium have isotopes that are all radioactive?
Usually not, but all elements have radioactive isotopes.
Is astatine an example of radioactive element?
Yes. There are no stable isotopes of astatine, they are all radioactive.
What or who disproved all atoms of a given element are the same?
Frederick Soddy in 1912 observed first radioactive isotopes and J.J. Thomson first stable isotopes in1913.
How many stable isotopes are in the element californium?
All the isotopes of californium are radioactive, artificial and unstable.
Is nobelium a stable element?
All the isotopes of nobelium are radioactive and unstable.
The last member of this group all isotopes of this element are radioactive?
FRANCIUM
All the isotopes of this element are radioactive?
Promethium, Technetium, and any element heavier than Bismuth.
What are isotopes considered radioactive?
Not all isotopes are radioactive; the radioactive isotopes are unstable and emit radiations.
Does plutonium have isotopes that are all radioactive?
All the uranium isotopes are radioactive.
