How is nuclear stability related to the neutron-proton ratio?
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answer--The nucleus is unstable if the neutron-proton ratio is less than 1:1 or greater than 1.5.
explanation--
At close distances, a strong nuclear force exists between nucleons. This attractive force comes from the neutrons.
More protons in the nucleus need more neutrons to bind the nucleus together.
The graph below is a plot of the number of neutrons versus the number of protons in various stable isotopes.
The stable nuclei are in the pink band known as the belt of stability.
They have a neutron/proton ratio between 1:1 and 1.5.
explanation--
At close distances, a strong nuclear force exists between nucleons. This attractive force comes from the neutrons.
More protons in the nucleus need more neutrons to bind the nucleus together.
The graph below is a plot of the number of neutrons versus the number of protons in various stable isotopes.
The stable nuclei are in the pink band known as the belt of stability.
They have a neutron/proton ratio between 1:1 and 1.5.
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