0
This is the time in which half the the atoms was disintegrated.
Kellen Bednar
Add your answer:
Earn +20 pts
What is neon's radioactivity including half-lives?
Neon is usually not radioactive in its natural state but does have several radioactive synthetic isotopes. It has a half-life of 38 seconds.
What is the mass number of potasium?
Potassium occurs naturally on earth in three isotopes with mass numbers 39, 40, and 41. Of these, the isotope K-40 is known to be radioactive, but has a very long half life. There are many other radioactive isotopes of potassium.
What property of half-lives makes radioactive material so problematic?
Radioactivity is limited by the natural decay-time to stable isotopes and there is no known way to shorten a half-life.
Is europium radioactive?
Europium is radioactive, though for most practical purposes it can be treated as stable. 52.2% of europium is stable. 47.8%, is radioactive 151Eu, but the half life of this is long, at 5,000,000,000,000,000,000 years. Like all other elements, europium has radioactive synthetic isotopes.
What isotope iodine iron phosphorus radium has the longest half-time?
Phosphorus, iron, and iodine all have at least one isotope that is stable, and any of these would do for the longest half life. In fact, the radioactive isotopes of phosphorus are all synthetic, so radioactive phosphorus is not found in nature.
State what is meant by half life of radioactive isotopes?
This is the time in which half the the atoms was disintegrated.
Why are radioactive isotopes and half life important to science?
half life tell time
What is the half-life of every radioactive element?
The same element can have different half-lives, for different isotopes. You can find a list at the Wikipedia article "List of radioactive isotopes by half-life". This list is NOT complete; a complete list would have about 3000 nuclides (that is, isotopes).
What is half-life as it relates to a radioactive element?
It really applies to radioactive isotopes, not elements. An element may have different isotopes, some of which are radioactive, some not.The half-life is the time it takes for half of a sample to decay - for the atoms to convert to some other type of atom.
What is half life of nitrogen?
The natural isotopes of nitrogen are stable; for the synthetic radioactive isotopes of nirogen see the link below.
What is the calculation of radioactive isotopes?
Examples characteristics: half life, specific activity, radiotoxicity.
Can the half life of a radioactive isotope decrease as the isotope decays?
No, the half-life of a radioactive isotope does not decrease as the isotope decays. That half-life remains constant. It's the amount of the substance that decreases as the isotope decays.
How are radioactive isotopes used to determine the absolute age of igneous rock.?
Answer : When the isotopes decay, scientists can find out how old the rock is depending on the radioactive isotope's half-life. Explanation: Radioactive isotopes are unstable and will decay. For example, when humans die carbon-14 decays. The isotopes will decay into a stable isotope over time. Scientists can tell how old the rock was from looking at the radioactive isotope's half-life, which tells them how long it would take for there to be half the radioactive isotope and half the stable isotope. At the next half-life there will be 25% of the radioactive isotope and 75% of the stable isotope. At the next half life there will be 12.5% radioactive and 87.5% stable. Example: Carbon-14 is a radioactive isotope with a half life of 5,730 years. How old would carbon-14 be when there is 75% carbon-14 in the rock? 75% is half of the time before the half-life, so it would be 2,365 years. Hope this helps. Half life helps scientists find how much the isotope has decayed and the age of the rock.
How are radioactive isotopes used determine the absolute age of igneous rock?
Answer : When the isotopes decay, scientists can find out how old the rock is depending on the radioactive isotope's half-life. Explanation: Radioactive isotopes are unstable and will decay. For example, when humans die carbon-14 decays. The isotopes will decay into a stable isotope over time. Scientists can tell how old the rock was from looking at the radioactive isotope's half-life, which tells them how long it would take for there to be half the radioactive isotope and half the stable isotope. At the next half-life there will be 25% of the radioactive isotope and 75% of the stable isotope. At the next half life there will be 12.5% radioactive and 87.5% stable. Example: Carbon-14 is a radioactive isotope with a half life of 5,730 years. How old would carbon-14 be when there is 75% carbon-14 in the rock? 75% is half of the time before the half-life, so it would be 2,365 years. Hope this helps. Half life helps scientists find how much the isotope has decayed and the age of the rock.
What is neon's radioactivity including half-lives?
Neon is usually not radioactive in its natural state but does have several radioactive synthetic isotopes. It has a half-life of 38 seconds.
What property of radioactive isotopes allow them to be used to determine the age of rocks and fossils?
Their half life.
How do you carryout radiometric dating?
By the use of isotopes of radioactive elements through the determination of their half life.
