What is the largest stable isotope?
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What is the largest stable isotope?
Examples of elements with doubly magic nuclei are 42He, with 2 protons and 2 neutrons, and 20882Pb, with 82 protons and 126 neutrons, which is the heaviest known stable isotope of any element.
What is the most massive stable element?
uranium
The heaviest naturally stable element is uranium, but over the years physicists have used accelerators to synthesize larger, heavier elements.
Which isotopes are more stable?
Elements with atomic number (Z) greater than 82 have no stable isotopes. Isotopes of elements with atomic number (Z) less than 20 and with a neutron to proton ratio of close to 1 are more likely to be stable if the nucleus contains an even number of protons and an even number of neutrons.
Where are the heaviest stable isotopes?
Superheavy Element 117 Points to Fabled “Island of Stability” on Periodic Table. Physicists have created one of the heaviest elements yet, an atom with 117 protons in its nucleus. This jumbo-sized atom sits on the outer reaches of the periodic table where bloated nuclei tend to become less and less stable.
Which element has highest isotopes?
Answers. The elements with the most isotopes are Cesium and Xenon with 36 known isotopes. Some isotopes are stable and some are unstable.
Why is iron 56 the most stable?
Iron-56 which is the most popular isotope of iron is considered as the most stable nucleus mainly because it has the lowest mass per nucleon of all nuclides. Further, with a binding energy of 8.8 MeV per nucleon, iron-56 is a tightly and efficiently bound nucleus.
What is the most unstable isotope?
Characteristics. Francium is one of the most unstable of the naturally occurring elements: its longest-lived isotope, francium-223, has a half-life of only 22 minutes.
Which is the largest stable atom?
Discoveries
| Element | Atomic number | Most stable isotope |
|---|---|---|
| Livermorium | 116 | 293Lv |
| Tennessine | 117 | 294Ts |
| Oganesson | 118 | 294Og |
What types of isotopes are unstable?
Radioactive isotopes are unstable because they have too many electrons. Many elements have one or more isotopes that are radioactive. These isotopes are called radioisotopes. An example of a radioisotope is carbon-14.
Which elements have stable isotopes?
Stable Isotopes Chart – Stable Isotopes of all the elements in table chart
| Element Atomic Number | Element Symbol | Element Name |
|---|---|---|
| 4 | Be | Beryllium |
| 5 | B | Boron |
| 6 | C | Carbon |
| 7 | N | Nitrogen |
What element has most stable and radioactive isotopes?
A good example of this is tritium, a radioactive isotope of hydrogen naturally present at extremely low levels. This table contains the elements that have no stable isotopes….Radioactive Elements.
| Element | Most Stable Isotope | Half-life of Most Stable Isotope |
|---|---|---|
| Oganesson | Og-294 | 1.8 milliseconds |
What is the most stable molecule?
Al2O3, the Aluminium Trioxide. It has a Standard Gibbs Free Energy of Formation value of -1582.275, the lowest of all other componds ones, meaning precisely more stability. Among all the crystalline forms of the compound, the alpha-alumina (corundum) is the most stable.