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How many radioactive isotopes does gold have?
2
How many stable isotopes are in the element californium?
All the isotopes of californium are radioactive, artificial and unstable.
How many isotopes does the element astatine from the periodic table have?
Astatine, a radioactive element found in the halogen group, has at least 20 known isotopes. However, only one of these isotopes, Astatine-210, is considered stable. The other isotopes are unstable and undergo radioactive decay.
How many unstable nuclei exist in nature?
There are many unstable nuclei that exist in nature, but the exact number is difficult to determine due to the sheer variety of radioactive isotopes that can occur. These unstable nuclei can undergo radioactive decay to become more stable over time.
Is the parent element always radioactive in a nuclear reaction?
No, the parent element in a nuclear reaction is not always radioactive. While many parent isotopes are indeed radioactive and decay into stable or unstable daughter isotopes, there are also stable isotopes that can undergo nuclear reactions without being radioactive themselves. For example, stable isotopes can be involved in nuclear reactions such as neutron capture or fusion, but they do not decay over time like radioactive isotopes.
How many isotopes of gallium are there?
There are two stable isotopes of gallium: gallium-69 and gallium-71. Additionally, there are several radioactive isotopes of gallium, but they are unstable and decay over time.
Hydrogen has how many unstable isotopes?
Hydrogen has 1 unstable isotope, and 2 stable isotopes.
All isotopes radioactive?
No, there are many stable isotopes.
What is the radioactivity for lead?
The main lead isotopes 206Pb, 207Pb and 208Pb, are not radioactive. It does have traces of radioactive isotopes, but the quantity is so small that lead's radioactivity can be considered zero. It is however toxic if ingested.
How man protons does an element have to have to make it radioactive?
An element can be radioactive regardless of its number of protons. Radioactivity depends on the specific isotopes of an element, which can have different numbers of neutrons. Elements with unstable isotopes that undergo radioactive decay typically have too few or too many neutrons compared to the number of protons.
Are all transition elements are radioactive?
Not all of the transition elements are radioactive. Many of them are, and some of them have common radioactive isotopes, but some of them have no naturally occurring radioactive isotopes. Please note that all elements have synthetic radioactive isotopes, at least.
How many radioactive isotopes are known?
Today are known approx. 3 000 radioactive isotopes, natural or artificial.
