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Answer: An unstable nucleus (nuclei) contains a near excessive number of neutrons and can spontaneously break apart (radioactive decay) into one or more nuclei (combinations of: alpha, beta, element fission, charged or neutral, and much energy) all with a lighter state.
When a large number of atoms of the same isotope are observed they will have a statistically consistent half life.
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∙ 9y ago
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∙ 12y agoAn unstable nucleus is one that is Radioactive and decays by emission of alpha particles, beta+ particles, beta- particles, protons or neutrons, or by splitting into two almost equal pieces (nuclear fission) until the nucleus is stable.
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∙ 12y agoIt either goes through beta, alpha or gamma emission, which either changes its Atomic Properties (eg; 230U92 to 226Th90 [alpha])
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∙ 13y agoThat the atom has too many neutron or too many protons.
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∙ 11y agoA nucleus is unstable when its proton-to-neutron ratio is not equal.
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∙ 12y agoMany nuclides are unstable. Instability means that the nuclide will undergo radioactive decay. Carbon-14, for instance, is one, but there are thousands.
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∙ 13y agoradioactive
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What is the primary reason an atoms nucleus is unstable?
Increasing the ratio neutrons/protons in the nucleus the atom become unstable.
The nucleus of a radium 226 atom is unstable which causes the nucleus to?
Decay
What is An unstable isotope is called what?
It isn't really an ELEMENT that is unstable, but an ISOTOPE. That means that in general, for the same element, some atoms will decay, and some will not - the difference being the number of neutrons in the nucleus.
When an unstable magnesium nucleus undergoes gamma decay the nucleus formed is that of what?
Magnesium
What causes radioactivity?
Ans : unstable nucleus Anurag
What is the primary reason an atoms nucleus is unstable?
Increasing the ratio neutrons/protons in the nucleus the atom become unstable.
What happens to a nucleus of an unstable atom?
the unstable nucleus will decay into smaller, stable particles.
The nucleus of a radium 226 atom is unstable which causes the nucleus to?
Decay
How is a stable nucleus different to an unstable nucleus?
A stable nucleus is one which will not decay, whereas an unstable nucleus will decay at some point, which cannot be predicted as decay is a random process, by alpha or beta decay.
What is An unstable isotope is called what?
It isn't really an ELEMENT that is unstable, but an ISOTOPE. That means that in general, for the same element, some atoms will decay, and some will not - the difference being the number of neutrons in the nucleus.
When an unstable magnesium nucleus undergoes gamma decay the nucleus formed is that of what?
Magnesium
What is the term for an atom that has an unstable nucleus?
radioisotope
What is radioactive in physics?
the unstable nucleus of an atom
Nuclear radiation refers to charged particles or energy emitted by an unstable what?
Nucleus
Is radioactivity caused due to unstable nucleus?
Yes.
What is natural transmutation?
Change from unstable to stable nucleus.
What causes radioactivity?
Ans : unstable nucleus Anurag
