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Radioactive decay - Wikipedia

en.wikipedia.org/wiki/Radioactive_decay

Radioactive decay is the process by which the nucleus of an unstable atom loses energy by ..... Radioactive decay is seen in all isotopes of all elements of atomic number 83 (bismuth) or greater. .....

What happens to the atomic nuclei of unstable isotopes during ...

www.reference.com/science/happens-atomic-nuclei-unstable-isotopes-during-radioactive-decay-59d7e6d10deb79f

In every instance where an unstable isotope undergoes radioactive decay, one or more atoms with a different number of protons than the decaying atom are ...

What happens to the atomic nuclei of unstable isotopes during ...

www.answers.com/Q/What_happens_to_the_atomic_nuclei_of_unstable_isotopes_during_radioactive_decay

Unstable atomic nuclei decay over time into stable nuclei causing a mineral to be ? ... of time it takes for one-half of the nuclei of a radioactive isotope to decay?

What happens to the atomic nuclei of unstable isotopes during ...

www.quora.com/What-happens-to-the-atomic-nuclei-of-unstable-isotopes-during-radioactive-decay

Aug 13, 2015 ... If you really want to understand what happens in the atomic nuclei of unstable ... The nucleus of an atom undergoing radioactive decay splits into two (or on rare occasions, three) pieces which are the nuclei of two other and ...

The Process of Natural Radioactive Decay - dummies

www.dummies.com/education/science/chemistry/the-process-of-natural-radioactive-decay/

Certain naturally occurring radioactive isotopes are unstable: Their nucleus breaks apart, ... The radioactivity corresponds to the neutron/proton ratio in the atom:.

BBC - GCSE Bitesize Science - Radioactive decay : Revision

www.bbc.co.uk/schools/gcsebitesize/science/triple_edexcel/ionising_radiation/radioactive_decay/revision/1/

Back. Next. The nuclei of some isotopes are unstable and emit radiation. ... isotopes. Unstable nuclei split up in a process called radioactive decay and emit radioactive radiation. ... A = atomic mass (number of protons + neutrons). Z = atomic ...

BBC - GCSE Bitesize: Radioactive decay

www.bbc.co.uk/schools/gcsebitesize/science/add_aqa_pre_2011/radiation/atomsisotopesrev3.shtml

When a radioactive isotope decays, it forms a different atom with a different ... occur to the number of particles in an unstable nucleus when it emits a radioactive ...

ChemTeam: Answers to General Radioactivity Questions

www.chemteam.info/Radioactivity/WS-Radioactivity1-Ans.html

4) The process in which the nuclei of unstable atoms can become more stable by ... of an atom into another kind of atom that takes place during radioactive decay. ... 23) The half-life of a given isotope can be altered by heat, pressure, or some ...

Isotopes and Radioactivity Tutorial

eesc.columbia.edu/courses/ees/lithosphere/labs/lab12/radioisotope_tutorial.html

Radioactive isotopes (also called radioisotopes) have unstable nuclei. ... Some isotopes release an alpha particle during nuclear disintegration; an alpha ... When an isotope emits a beta particle, it decays to a daughter with an atomic number ...

Basic Nuclear Science Information

www2.lbl.gov/abc/Basic.html

Mar 30, 2007 ... Nuclear Structure | Radioactivity | Alpha Decay | Beta Decay |Gamma ... The number of protons in the nucleus, Z, is called the atomic number. ... are approximately 270 stable isotopes, and more than 2000 unstable isotopes.