...Radioactive decay is the process in which an unstable atomic nucleus spontaneously loses energy by emitting ionizing particles and radiation. This decay, or loss of energy, results in an atom of one type, called the parent nuclide transforming to an atom of a different type, named the daughter nuclide. For example: a carbon-14 atom (the "parent") emits radiation and transforms to a nitrogen-14 atom (the "daughter"). This is a stochastic process on the atomic level, in that it is impossible to predict when a given atom will decay, but given a large number of similar atoms the decay rate, on average, is predictable. Read full entry
This entry is from Wikipedia,the leading user-contributed encyclopedia.It may not have been reviewed by professional editors(See full disclaimer)
- 1.Radioactive decay - Wikipedia, the free encyclopedia
- Radioactive decay is the process in which an unstable atomic nucleus ... The SI unit of radioactive decay is the becquerel (Bq) ...
- http://en.wikipedia.org/wiki/R
adioactive_decay
- 2.radioactive decay: Definition from Answers.com
- radioactive decay n. Spontaneous disintegration of a radionuclide accompanied by the emission of ionizing radiation in the form of alpha or beta
- http://www.answers.com/topic/r
adioactive-decay
 |
radioactive decay?
what are the cons to
radioactive decay? what are
the downfalls, the bad things
about it?
|
|
 |
|
|
 |
It can give you cancer or a plethora of other problems. The radiation put out by the decay of some radionuclides is extremely harmful to life. |
|
|
|
|
|
What determines which specific What determines which specific
atoms of a radioactive
material decay over a period
of time?
a. Age of the atoms - the
oldest atoms decay first.
b. Concentration - atoms that
are closely grouped decay
faster than atoms that are
more spread out.
c. Concentration - atoms that
are more spread out decay
faster than atoms that are
closely grouped together.
d. Nothing - radioactive decay
of a specific atom is believed
to be a completely random
event.
|
|
|
|
|
|
The answer is (d). There are no external conditions that determine when a particular atom will undergo decay, it's strictly up to the atom, itself, so to speak. |
|
|
|
|
|
What are the 5 different types My chem class is doing an
activity online and we need to
know the 5 types of
radioactive decay, not the 3
types. I also need to have a
website for reference to put
down, so please provide that
if you can. Thanks!
|
|
|
|
|
|
Alpha decay An alpha particle (A=4, Z=2) emitted from nucleus (A–4, Z–2) Proton emission A proton ejected from nucleus (A–1, Z–1) Neutron emission A neutron ejected from nucleus (A–1, Z) Double proton emission Two protons ejected from nucleus simultaneously (A–2, Z–2) Spontaneous fission Nucleus disintegrates into two or more smaller nuclei and other particles - Cluster decay Nucleus emits a specific type of smaller nucleus (A1, Z1) smaller than, or larger than, an alpha particle (A–A1, Z–Z1) + (A1,Z1) |
|
|
|
|
