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 ...
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 ...
Certain naturally occurring radioactive isotopes are unstable: Their nucleus
breaks apart, ... The radioactivity corresponds to the neutron/proton ratio in the
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
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.
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 =
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
What happens in the nucleus of unstable radioactive atoms? ... Beta minus decay
tends to happen with isotopes with too many neutrons to be stable (too high an ...
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 ...