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Radioactive decay - Wikipedia


Radioactive decay is the process by which the nucleus of an unstable atom loses energy by ... By contrast, there are radioactive decay processes that do not result in a nuclear transmutation. The en...

Why do atomic nuclei decay - Answers.com


What happens to the atomic nuclei of unstable isotopes during radioactive decay ? here are the choices A. give off nuclear radiation. B. are broken down by ...

The Process of Natural Radioactive Decay - dummies


The forces that normally hold the nucleus together sometimes can't do the job, and ... As an alpha particle breaks away from the nucleus of a radioactive atom, ...

Radioactive Decay - NDE/NDT Resource Center


After reading this section you will be able to do the following: ... Radioactive decay is the spontaneous breakdown of an atomic nucleus resulting in the release of ...

Neutron Stability in Atomic Nuclei | Of Particular Significance


May 8, 2012 ... 2: A neutron on its own will decay after a few minutes to a proton, and .... It turns out that there are quite a few nuclei that, like a neutron, do fall ...

BBC - GCSE Bitesize Science - Radioactive decay : Revision


When the nucleus of an atom possesses either too many or too few neutrons compared to ... In Beta (β-) decay, a neutron changes into a proton plus an electron.

Radioactivity - Institute of Physics


Radioactive decay occurs in unstable atomic nuclei – that is, ones that don't ... or a sheet of paper – although this type of radiation does the most damage to ...

Why do atoms become unstable? | Reference.com


The nuclear forces in unstable nuclei do not generate enough binding energy to ... During this radioactive decay, atoms release their excess energy in a process ...

Basic Nuclear Science Information


Mar 30, 2007 ... Nuclear Structure | Radioactivity | Alpha Decay | Beta Decay |Gamma Decay ... If the new window does not have a scroll bar, you can click on the ... The number of protons in the nucleus, Z, is called the atomic number.

Beta Decay


Aug 9, 2000 ... Beta decay occurs when, in a nucleus with too many protons or too many ... proton, a hydrogen nucleus with or without an electron, does not decay. ... number, so that the parent and daughter atoms are different elements.