Integrated Sciences Karteikarten am ISCI 2002 Chapter 13, erstellt von Kyanna Jackson am 01/04/2018.
|
Erstellt von Kyanna Jackson
vor mehr als 6 Jahre
|
|
Schließen
|
|
Erstellt von Kyanna Jackson
vor mehr als 6 Jahre
|
|
Radioactivity
Unstable atomic nuclei
Most radiation we encounter is:
Three Components of Radiation from Radionuclides
Types of radiation:
Alpha particle:
Alpha particle:
Beta particle:
Beta particle:
Gamma rays:
Gamma rays:
Common Particles Encountered in Nuclear Reactions
alpha particle=
In a nuclear decay equation, the sums of the mass numbers (A) and the sums of the atomic numbers (Z) will be equivalent on each side
when an atom undergoes radioactive decay, it
The atomic nucleus and the strong number force
the strong force is only between close together nucleons. For far apart protons, the electric force is greater
Half-Life:
Half-Life:
Decay of Thorium234 over two half-lives Thorium234 has a half-life of 24 days.
Finding the Elapsed Time
