Radioactive decay, also known as nuclear decay or radioactivity, is the process
by which the nucleus of an unstable atom loses ..... Radioactive decay is seen in
all isotopes of all elements of atom...
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 ...
here are the choices. A. give off nuclear radiation. B. are broken down by
radioactive bacteria. ... Unstable atomic nuclei decay over time into stable nuclei
causing a mineral to be? radioactive. 1 person found this useful. Edit. Share to:.
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 ...
Aug 9, 2000 ... Each nucleus can be characterized by two numbers: A, the atomic mass number,
... Nuclei with more than 83 protons are all unstable, and will eventually break up
... During radioactive decay, principles of conservation apply.
Over time, the nuclei of unstable isotopes spontaneously disintegrate, or
transform, in a ... When an atom undergoes radioactive decay, it emits one or
more forms of ... Let's explore what happens to a Uranium-238 Nucleus during
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
Radioactive decay is the spontaneous breakdown of an atomic nucleus ...
Remember that a radioisotope has unstable nuclei that does not have ...
Radioisotopes would like to be stable isotopes so they are constantly changing to
try and stabilize. ... Let's explore what happens to a Uranium-238 Nucleus during
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.
Nov 18, 2004 ... Atomic weight (atomic mass): Approximately the sum of the number of ...
Daughter: A nucleus formed by the radioactive decay of a different (parent)
nuclide. .... An unstable isotope of an element that decays or disintegrates ...