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What happens when a nucleus has more protons than neutrons?

Posted on September 5, 2022 by Author

What happens when a nucleus has more protons than neutrons?

The atom that has a charge is also called an ion and when it is positive it is called a cation. When an atom has more protons than neutrons, they are very unstable and do not stay that way for long except for protium and helium-3. When an atom has more neutrons than protons, most of these isotopes are radioactive.

Could a nucleus have more than one proton but no neutrons?

Could a nucleus have more than one proton, but have no neutrons exist? No. The strong force between like nucleons is actually slightly repulsive.

Is there a limit to how many protons can be in a nucleus?

Yes, there is a maximum atomic number for a single atom. The reason comes from nuclear physics. A nucleus can have no more than 126 protons (and around 150 neutrons), because a nucleus with more than approximately 126 protons cannot possibly hold itself together.

Does a nucleus have the same number of protons and neutrons?

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).

When there are more than protons in the nucleus the nucleus is unstable because the strong nuclear force Cannot hold it together?

If atoms have more than 83 protons, the electromagnetic repulsion between them is greater than the strong nuclear force of attraction between them. This makes the nucleus unstable, or radioactive, so it breaks down.

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Can there be more neutrons than protons?

The reason is that protons, being charged particles, repel each other. As you get to heavier elements, with each new proton you add, there is a larger repulsive force. As the nuclei get larger, the neutron well gets deeper as compared to the proton well and you get more neutrons than protons.

What keeps a nucleus with two or more protons from flying apart?

The strong nuclear force pulls together protons and neutrons in the nucleus. At very small distances only, such as those inside the nucleus, this strong force overcomes the electromagnetic force, and prevents the electrical repulsion of protons from blowing the nucleus apart.

What is the region around the nucleus where the electrons are found?

orbital
This force of attraction keeps electrons constantly moving around the nucleus. The region where an electron is most likely to be found is called an orbital.

Is there a limit to how many neutrons an atom can have?

No one knows how many neutrons an atom can have. A nucleus is stable if the number of neutrons does not exceed 1.5 times the number of protons. Nuclei that have too many neutrons are radioactive.

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Why there is a limit of neutrons in the nucleus?

It is because the strong force is repulsive on very short scales. This keeps the neutrons and protons apart too. And the EM force keeps the protons apart too.

How many protons are there in a nucleus of I and in a nucleus of I?

Iron has an atomic number of 26. Therefore, every iron atom has 26 protons in its nucleus. Carbon has an atomic number of 6. Therefore, every carbon atom has 6 protons in its nucleus….Atomic Number.

Element iodine (I)
Atomic Number 53
Element uranium (U)
Atomic Nmbers 92

How many protons are in the nucleus of each element?

The atomic number is the number of protons in an atom of an element. In our example, krypton’s atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus. The interesting thing here is that every atom of krypton contains 36 protons.

Are there any stable nuclei with more protons than neutrons?

But to answer your question directly, yes, there are stable nuclei with more protons than neutrons. The most obvious one is H-1, and the other He-3. He-2 is very close to being stable, but not quite (the strong force is higher than the electromagnetic repulsion, but there’s other effects that make its binding energy positive).

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Why do protons and neutrons stick together in an atom?

The positively-charged protons repel each other and aren’t electrically attracted or repelled to the neutral neutrons, so you may wonder how the atomic nucleus sticks together and why protons don’t fly off. The reason protons and neutrons stick together is the strong force.

How are electrons attracted to the nucleus of an atom?

The nucleus of an atom consists of bound protons and neutrons (nucleons). The negatively-charged electrons are attracted to the positively-charged protons and fall around the nucleus, much like a satellite is attracted to the gravity of the Earth.

Why do atoms have a limited number of protons?

Atoms are limited in the number of protons they can contain, because each proton is positively charged, and because “like repels like,” they want to push each other away. Even neutrons, which have no charge, are slightly repulsive to each other.

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