The answer is not so simple:
- the chemical compound may be stable frequently (at a molecular scale)
- but one of the elements in the formula (radioactive) is unstable
- sometimes the radiations emitted by the radioactive element can destroy the molecule: the consequence of a radiochemical reaction as radiolysis.
Elements with no stable isotopes are called radioactive elements. These elements spontaneously undergo radioactive decay, which leads to the formation of stable isotopes over time.
All elements above the atomic number of 83 are radioactive, but two elements that are under it are also radioactive. They are technetium (atomic number 43) and promethium (atomic number 61). Radioactive elements are elements that decay until stable. =)
Unstable chemical elements are disintegrated by radioactive decay.
The stable elements are the ones that are not affected by nuclear degeneration. They are non-radioactive and they include lead, sodium, potassium and calcium among others.
All radioactive elements are unstable. Most isotopes of elements in periodic table are radioactive. Overall, most of the elements are unstable but they are present in traces on earth. Most elements on earth are stable.
Elements with no stable isotopes are called radioactive elements. These elements spontaneously undergo radioactive decay, which leads to the formation of stable isotopes over time.
By definition. If it were stable, then it would not be radioactive.
Radioactive elements make up a small fraction of all naturally occurring elements in Earth's crust. Most elements are stable and non-radioactive. However, even though they are a minority, radioactive elements play important roles in various scientific, medical, and industrial applications.
Unstable elements are radioactive elements that spontaneously decay into other elements. Some are: Radon Uranium Plutonium See the related link for an article giving greater detail on isotope stability.
All elements above the atomic number of 83 are radioactive, but two elements that are under it are also radioactive. They are technetium (atomic number 43) and promethium (atomic number 61). Radioactive elements are elements that decay until stable. =)
Radioactive Elements (38) These elements are radioactive. They either have no stable naturally occurring isotope, or else are entirely artificial (all artificial elements have no stable isotopes). by Andrew Moore
Radioactive elements break down in to stable isotopes through nuclear decay. The list of isotopes from a nuclear isotope to a stable isotope is called its decay chain.
This is an element (more exactly an isotope) which is not radioactive.
Unstable chemical elements are disintegrated by radioactive decay.
Now are known only two hassium compounds: HsO4 and Na2[HsO4(OH)2].
The stable elements are the ones that are not affected by nuclear degeneration. They are non-radioactive and they include lead, sodium, potassium and calcium among others.
Yes, promethium, which is a lanthanide, has no stable isotopes.