Without knowing the element and the specific isotope, this has no answer.
Illadelph Halflife was created on 1996-09-24.
none, uranium itself is unstable, there are no stable elements after bismuth; and even some researchers suggest that bismuth is an unstable radioactive element with a halflife approaching twice the age of the universe.
No, halflife is a bulk statistical property of a quantity of an isotope of an element.Individual nuclei do not have halflives, instead they have a probability of decaying at the current moment of time.
Yes.
238U radiates alpha particles and decays via 234Th and 234Pa into 234U, which has a halflife of 245,500 years. (Thorium-234, Protactinium-234, Uranium-234 respectively)
The logo has a border, however the lambda is in the center.
Yes, but it has a halflife of only 0.86 seconds.
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The half life of plutonium-235 is 25,3(5) minutes.
You think probably at 8 neutrons; in this case the extremely unstable isotope is 10He. Atomic mass: 10,0524; Halflife: 2,7.10-21 seconds
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3-5 days, 18-50 hour halflife