What is the relationship between the number of protons and neutrons and the stability of an atom?

Their stability is determined by the ratio of the number of neutrons to the number of protons in the nucleus. At low atomic masses, the stable ratio is approximately 1:1. At about an atomic mass number of 20 this starts to increase until it is around 1.5:1 for the very heavy elements.

What is the relationship between the stability of the nucleus and the ratio of neutrons to protons in the nucleus?

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. As the nucleus gets bigger, the electrostatic repulsions between the protons gets weaker. The nuclear strong force is about 100 times as strong as the electrostatic repulsions.

What is the relationship between the number of protons and the number of neutrons?

The mass number of an atom is equal to the number of protons plus the number of neutrons that it contains. In other words, the number of neutrons in any atom is its mass number minus its atomic number.

How is it related to stability of the nucleus?

Nuclear stability means that the nucleus of an element is stable and thus it does not decay spontaneously emitting any kind of radioactivity. Those nuclei with the highest binding energy per nucleon are the most stable with respect to destructive nuclear reactions.

What is the mathematical relationship between proton electron and charge?

Proton—positive; electron—negative; neutron—no charge. The charge on the proton and electron are exactly the same size but opposite. The same number of protons and electrons exactly cancel one another in a neutral atom. Note: The picture shows a simple model of the carbon atom.

What does the number 84 in the name krypton 84 represent?

In the case of Krypton-84, this means that you have 84 nucleons, where 36 of these are protons, and the remaining 48 are neutrons. This becomes relevant in nuclear chemistry, where sometimes, you have to balance nuclear equations with respect to the mass numbers (nucleon numbers).

How many stable nuclides have an odd number of protons and odd number of neutrons?

Conversely, of the 252 known stable nuclides, only five have both an odd number of protons and odd number of neutrons: hydrogen-2 (deuterium), lithium-6, boron-10, nitrogen-14, and tantalum-180m.

Why the ratio between the numbers of neutrons and protons n p of a stable nucleus is always equivalent to or greater than 1?

The N:P. The ratio is 1.5:1, the reason for this difference is because of the repulsive force between protons: the stronger the repulsion force, the more neutrons are needed to stabilize the nuclei.

What is the relationship between the proton number and the atomic number of an atom?

The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules. The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.

Is there any relation between the total number of protons and neutrons in an atom and its mass?

The number of protons and the number of neutrons together determine the mass number of an element: mass amount = protons + neutrons.

How is binding energy per nucleon related with stability of nucleus?

The larger the value of the mass defect, the greater the nuclear binding energy and the more stable the nucleus.

How do odd and even numbers of protons affect nuclear stability?

Nuclides contain odd numbers of protons and even numbers of neutrons are less stable than nuclides containing even numbers of protons and odd numbers of neutrons. In general, nuclear stability is greater for nuclides containing even numbers of protons and neutrons or both.

What is the neutron/proton ratio of a stable nucleus?

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.

Do more protons or neutrons bind the nucleus together?

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.

Why is the nucleus unstable at close distances?

The nucleus is unstable if the neutron-proton ratio is less than 1:1 or greater than 1.5. At close distances, a strong nuclear force exists between nucleons. This attractive force comes from the neutrons.