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All isotopes of francium are radioactive.

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The last member of this group all isotopes of this element are radioactive?

The element that fits this criteria is francium (Fr). All isotopes of francium are radioactive, with the most stable isotope having a half-life of only 22 minutes. Francium is a highly unstable element and is very rare in nature.


What is the last member of this group all isotopes of this element are radioactive?

For example francium in the group 1.


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.


What happens to all radioactive isotopes?

All radioactive isotopes will disintegrate.


Is Francium radioactive?

Yes, francium is radioactive. It is the most unstable and rarest naturally occurring element on Earth, with a half-life of only about 22 minutes. Due to its high radioactivity and short half-life, francium is extremely difficult to study and is typically only observed in trace amounts in nature.


What is the radioactive alkali metal?

Francium name by the Curies after france. Yes it is rare and radioactive.


Are all transition elements are radioactive?

Not all of the transition elements are radioactive. Many of them are, and some of them have common radioactive isotopes, but some of them have no naturally occurring radioactive isotopes. Please note that all elements have synthetic radioactive isotopes, at least.


All isotopes radioactive?

No, there are many stable isotopes.


Does Barium have isotopes that are all radioactive?

No, Barium has both stable and radioactive isotopes. Out of its 25 known isotopes, only 6 of them are considered radioactive. The most stable isotope of Barium is Barium-138, which is not radioactive.


All isotopes of the actinide series are what?

All the actinides isotopes are radioactive; and the majority are artificial isotopes.


Does uranium exist in a stable non-radioactive form?

All the isotopes of uranium are radioactive and unstable.