| beta decay |
In simple beta decay, a neutron becomes a proton, emitting a beta particle (a high-speed electron). This converts the nucleus to another element, raising its atomic number by one. Alternatively, a proton can become a neutron, emitting a beta plus particle (a high-speed positron). This reaction decreases the atomic number by one. This second reaction is very rare among naturally occurring isotopes, but happens for many artificial isotopes. ...
출처: www.xs64.com/wikixs/index.php/Radioactivity
|
|---|