What is the final stable daughter isotope of uranium-238? What is an unstable radioactive isotope? What are the stable isotopes of nitrogen? Which elements have stable isotopes with 26 neutrons? What does stable isotope mean? What makes an isotope stable or unstable? What are the stable isotop...
Do radioactive isotopes have stable nuclei? How is beta radiation produced by a radioactive isotope? How are radioactive isotopes used to detect health problems? How can isotopes be used in medicine (be specific)? Describe in detail one example of how an isotope is used therapeutically, and d...
Carbon-14 is more unstable than carbon-12, so it's radioactive: it naturally disintegrates, giving off subatomic particles in the process, to turn itself into nitrogen. Carbon-12 and carbon-14 are called isotopes of carbon. An isotope is simply an atom with a different number of neutrons ...
However, we see that the balance between the forces starts to topple when the number of neutrons exceeds that of protons. Example: Carbon 12 with 6 n and 6 p is a stable isotope, but C 14 has 8 n and 6 p, making it an unstable isotope. Or, perhaps a nucleus exceeds the threshold...
Stable atoms of iron, such as the isotope iron-56, have 26 protons and 30 neutrons. The excess of neutrons granted to iron by neutron capture makes the iron atoms unstable and radioactive due to a huge imbalance between protons and neutrons. This results in some of the atoms undergoing ...
But nuclei are not perfectly stable, and over time, they decay, emitting particles and energy. Each element that undergoes radioactive decay, or more specifically the isotope of the element being studied, has its own characteristic half-life, which can be used to predict how many nuclei will ...
If you alter the number of neutrons in an atom, you wind up with an isotope. For example, carbon has three isotopes: carbon-12 (six protons + six neutrons), a stable and commonly occurring form of the element carbon-13 (six protons + seven neutrons), which is stable but rare carbon-...
The stability of an isotope is affected by the ratio of protons to neutrons. Of the 339 different types of elements that occur naturally on Earth, 254 (about 75%) have been labelled as “stable isotopes” – i.e. not subject to decay. An additional 34 radioactive elements have half-live...
The stability of an isotope is affected by the ratio of protons to neutrons. Of the 339 different types of elements that occur naturally on Earth, 254 (about 75%) have been labelled as "stable isotopes" – i.e. not subject to decay. An additional 34 radioactive elements have half-lives...
the period known as Big Bang nucleosynthesis also began. Thanks to temperatures dropping to 1 billion kelvin and the energy densities dropping to about the equivalent of air, neutrons and protons began to combine to form the universe's first deuterium (a stable isotope of Hydrogen) and helium ...