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What makes radioactive material unstable?
Radioactive material is unstable because it "wants" to change the configuration of the nucleus to one that is more stable. This is a result in an inbalance of the ratio of protons vs neutrons, said ratio being different for each isotope.
Does a Protists a have cells without nuclei?
No, protists have a nucleus which makes them procaryotic
What makes americium radioactive?
Because the nucleus of americium is heavy and unstable.
What is the nucleus made of?
The nucleus of what? There are all sorts of nuclei including atomic nuclei and cell nuclei. Atomic nuclei are made of protons and neutrons. Cell nuclei are made of lipids, protein, DNA and many other chemicals.
Are All atoms of actinides are radioactive?
The actinides all have a numerical ratio of protons to neutrons that makes their atomic nuclei unstable. This causes those nuclei to expel some type of particle (alpha or beta) and this causes a transmutation into another less massive (and usually more stable) element. This is radioactive decay.
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 makes an element unstable or radioactive?
The stability of an atom depends on a balance between the numbers of protons and neutrons in its nucleus and also on the total size of its nucleus; atoms with sufficiently large nuclei are inherently unstable. Please see the link.
What makes a nucleus unstable?
The strong nuclear force doesn't balance the electrostatic force.
What makes radioactive material unstable?
Radioactive material is unstable because it "wants" to change the configuration of the nucleus to one that is more stable. This is a result in an inbalance of the ratio of protons vs neutrons, said ratio being different for each isotope.
Does a Protists a have cells without nuclei?
No, protists have a nucleus which makes them procaryotic
What makes nucleus stable?
The strong nuclear force must balance electrostatic forces in the nucleus
What makes americium radioactive?
Because the nucleus of americium is heavy and unstable.
What is the nucleus made of?
The nucleus of what? There are all sorts of nuclei including atomic nuclei and cell nuclei. Atomic nuclei are made of protons and neutrons. Cell nuclei are made of lipids, protein, DNA and many other chemicals.
What quality in uranium makes it useful in nuclear power?
An unstable nucleus which decays emitting a neutron.
Are All atoms of actinides are radioactive?
The actinides all have a numerical ratio of protons to neutrons that makes their atomic nuclei unstable. This causes those nuclei to expel some type of particle (alpha or beta) and this causes a transmutation into another less massive (and usually more stable) element. This is radioactive decay.
When does Uranium-235 become unstable?
Uranium 235 is unstable because it is a radioactive isotope. This means that it is constantly decaying and emitting radiation. The reason it is unstable is because it has too many neutrons in its nucleus. The neutron is a unstable particle, and when there are too many of them in one place, they can cause problems. When uranium 235 decays, it emits alpha particles, which are high-energy particles that can damage DNA and cause cancer.
Why does some elements have more isotopes than others?
Radioactivity stems from the instability of the nucleus of a given atom. Remember that in an atomic nucleus, protons and neutrons are held together with nuclear glue or binding energy (1H being the exception). Protons don't like each other to begin with. But under the most extraordinary conditions (like in a star), protons and neutrons can be forced together and fused (fusion) to create more complex nuclei. And in a supernova, elements heavier than iron (the heaviest "regular" element that a star makes during "normal" fusion) are created. In all this "creativity" and among all the products that result, some atomic nuclei that are formed aren't really happy with their arrangement. They are unstable, and at some time in the future they will spontaneously break apart. In some arrangements of nucleons (the particles that make up an atomic nucleus, the protons and neutrons), the ratio of the two types of particles, the ratio of protons to neutrons, is one that "strains" the combinational power that holds them together and other arrangements are possible. It is the number and type of nucleons that make up a nucleus that determines how stable it is. There are many stable nuclei. There are many combinations that are not possible - they will never form, they cannot form - and then there are the unstable nuclei. The different numbers of protons and neutrons that make up a nucleus make for a different "dynamic" in each atomic nucleus in which they are confined. Some are structures that will stay together, and in some of the structures formed, the nucleons can "shift" and break the structure of the nucleus, thereby allowing the nucleons to move to a lower energy level state. In radioactive decay, a shift in the nuclear structure and the release of a particle (or particles) and/or energy, allows the remaining nucleons to "rewrite" the terms and conditions of their "confinement" in the nucleus. This spontaneous transition is what radioactive decay is. The possibilities are why some nuclei are stable and some are not, and why some are more stable than others. It is impossible to say when any given unstable atom will decay, but over a large number of them, an "avarage" rate of decay can be quantified. That will allow us to know the half life of that radionuclide.
