Some isotopes are stable, others are unstable.
All the isotopes of americium are radioactive and unstable.
Polonium is the element in group 16 that has unstable isotopes. It is a radioactive element with no stable isotopes.
Selenium is generally considered stable in its elemental form. However, some of its isotopes are unstable and undergo radioactive decay.
No. Often a decay product is itself unstable and will decay into something else until a stable isotope is reached. This is called a decay chain. For example, Uranium-238 will decay 15 times through various isotopes until it becomes lead-206 which is stable
All the isotopes of californium are radioactive, artificial and unstable.
Hydrogen has 1 unstable isotope, and 2 stable isotopes.
All the isotopes of americium are radioactive and unstable.
It has mostly stable isotopes.
Yes, carbon (atomic number 6) is a stable element with both stable and unstable isotopes. The most common stable isotope of carbon is carbon-12, which makes up about 98.9% of naturally occurring carbon.
Polonium is the element in group 16 that has unstable isotopes. It is a radioactive element with no stable isotopes.
If you mean oxygen: like most elements, it has both stable isotopes, and unstable (i.e., radioactive) isotopes. 16O, 17O and 18O are stable; the unstable (radioactive) isotopes include 15O and 14O.
Technetium has no stable isotopes.
Selenium is generally considered stable in its elemental form. However, some of its isotopes are unstable and undergo radioactive decay.
No. Often a decay product is itself unstable and will decay into something else until a stable isotope is reached. This is called a decay chain. For example, Uranium-238 will decay 15 times through various isotopes until it becomes lead-206 which is stable
All the isotopes of californium are radioactive, artificial and unstable.
All the isotopes of nobelium are radioactive and unstable.
The isotopes protium (H-1) and deuterium (H-2) are stable; tritium (H-3) and artificial isotopes are unstable.