The half-life of an isotope is how long it takes for half of the atoms in a mass to undergo radioactive decay. Say you have 40g of an elements isotope with a half-life of one year. After 1 year, there would be 20g of that isotope left, and 20g of a different isotope/element. After 2 years, there would be 10g, and so on...
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.
The length of time required for half of a sample of radioactive material to decay
The affix element of the word "important" is
all elements are very important
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.
Oxygen is an important element in blood your welcome :)
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
yes
importance of element
Carbon dating measures the amount of carbon halflives that an object's carbon-14 has seen. A halflife is the amount of time it takes for half of the C-14 present to decay into a different element (N-14). A carbon halflife is 5730 years so you wouldn't be able to tell with such a small amount of time.