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Which are more stable nuclei that have an even number of nucleons or nuclei that have an odd number of nucleons?

even


Which are more stable nuclei that have an even number of nucleons or those that have an odd number of nucleons?

even


Why is a larger nucleus not as stable as a smaller nucleus?

A smaller nucleus is generally more stable. Below are some general rules: # (Except for really small nuclei) All stable nuclei contain a number of neutrons that is equal to or greater than the number of protons. # Nuclei with too few or too many neutrons is unstable. # If a nuclei has even numbers of nucleons, it's generally more stable. # Nuclei with "magic numbers" usually tend to be more stable.


What is a pairing energy?

A pairing energy is the extra binding energy associated with pairs of nucleons of the same kind - which results in nuclei which have odd numbers of protons or neutrons having a lower binding energy and being less stable than those with even numbers.


How does binding energy per nucleon effect the stability of a nucleus?

The binding energy per nucleon is a measure of how tightly a nucleus is held together. Nuclei with higher binding energy per nucleon are more stable as they require more energy to break apart. Therefore, nuclei with a higher binding energy per nucleon are more stable and tend to resist undergoing nuclear reactions.


Is an even number of protons stable?

By an even number.


What nuclei would be the most stable?

10 protons, 12 neutrons


Which atoms are least likely to be radioactive?

Atoms with stable nuclei are least likely to be radioactive. Typically, atoms with an even number of protons and neutrons are more stable and less likely to undergo radioactive decay. This includes elements such as carbon-12, oxygen-16, and nitrogen-14.


Do isobars have the same atomic mass?

It depends on how picky you want to be. Yes, having the same number of nucleons they have practically the same atomic mass. No, because they don't have exactly the same atomic mass due to differences in the nuclear binding energy (and hence aren't truly "isobars", even though that's what they're called). (NB: this usage of "isobar" is from nuclear chemistry and means "nuclei with the same number of nucleons." It's not the meteorological isobar, which is something quite different and wouldn't make any sense in the context of the question.)


Why do stable xenon fluorides have an even number of F atoms?

Stable xenon fluorides have an even number of fluorine atoms because xenon is in the +2 oxidation state when it forms these compounds. This means it can accept a maximum of 8 valence electrons from fluorine atoms to complete its valence shell, leading to the formation of compounds with an even number of fluorine atoms.


What following nuclei would be the most stable?

The most stable nuclei are typically those with a balanced ratio of protons to neutrons, often found in elements with atomic numbers around 20 (like calcium) or in the region of the so-called "magic numbers," which are specific numbers of protons and neutrons that result in greater stability due to completed nuclear shells (e.g., 2, 8, 20, 28, 50, 82, and 126). Isotopes of these elements, particularly those that are not radioactive, tend to exhibit greater stability. Additionally, nuclei with even numbers of protons and neutrons are generally more stable than those with odd numbers.


Why isn't the atomic mass always an even number?

If you literally mean "even number", because there aren't always an even number of nucleons (each of which has a mass of about 1 amu), nor is there any special reason there should be.If you mean "whole number" instead, it's because the nucleons have a mass of about 1 amu each, not precisely 1 amu each, with the neutrons being slightly more massive than the protons. The electrons make a (very small) contribution as well.Finally, any given element may be a mixture of isotopes, and even if the isotopes individually did happen to have a whole number mass, the mixture wouldn't. Chlorine, for example, is about 3/4 35Cl and 1/4 37Cl, so it comes out to have an average atomic mass of roughly 35.5.