The ratio neutrons/protons in radioactive isotopes is the cause of their innstability.
The lightest "element" that can undergo radioactive decay is the isotope hydrogen-3, which undergoes beta decay. The lightest element with no radioactively stable isotopes is technetium, and its isotopes have different modes of decay.
it is used by scientist to to calculate a rock's age
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All elements have some isotopes that undergo radioactive decay, the question is how fast.Aluminum comes in three major isotopes, each with their own half-life:Al-26: 730000 years - 0% in natural aluminumAl-27: Stable - 100% in natural aluminumAl-28: 2.3 minutes - 0% in natural aluminumSo as natural aluminum is 100% Al-27 it does not undergo radioactive decay
The 3 isotopes that make up all naturally occurring silicon (28, 29, 30) on earth are all stable and thus do not undergo radioactive decay. But other silicon isotopes that are lighter or heavier can be produced by particle accelerators, nuclear reactors, nuclear explosions, or rarely cosmic rays do undergo radioactive decay via either -Beta, +Beta, or Gamma emission depending on isotope.Silicon does exist in space near very active stars, supernovas, etc. in the form of isotopes that undergo radioactive decay.The longest lived silicon isotope (32) that will undergo radioactive decay, has a halflife of roughly 700 years and thus will effectively completely decay to stable sulfur-32 in less than 4000 years. All other silicon isotopes that undergo radioactive decay have halflives so short that they finish decaying to stable isotopes of other elements in much less than a single day.
The two elements that undergo alpha decay are uranium and thorium.
Alpha decay
Thorium-230 is radioactive because it undergoes alpha decay, turning into radium-226 with the release of an alpha particle. This decay process is characteristic of radioactive elements.
Alpha decay
When an isotope is stable, it does not undergo radioactive decay. Stable isotopes have a balanced number of protons and neutrons in the nucleus, which prevents them from spontaneously changing into another element over time.
radioactive decay
This is an alpha decay.
Radon is a radioactive gas in the decay series of uranium and thorium.
Isotopes of radon (Rn)
Thorium decay chains are series of radioactive decays that thorium undergoes as it transforms into different elements. These decay chains ultimately lead to the production of stable isotopes of lead. Thorium decay chains are important in nuclear reactors and the study of radioactive decay processes.
No stable isotopes.
Yes, strontium can undergo radioactive decay. One common isotope of strontium, strontium-90, is a radioactive isotope that decays through beta decay. It is a byproduct of nuclear fission and can be harmful to living organisms due to its radioactive nature.