Radioactivity Flashcards
Alpha particle?
A particle made of 2 protons and 2 neutrons emitted as ionising radiation
Alpha decay?
A type of radiation in which atomic nucleus emits a alpha particle
What is a alpha particle also known as?
Helium nucleus 4/2
What happens in a alpha particle equation
Example
226. 222. 4
Ra —->. Rn + he
88. 86. 2
Beta particle?
Otherwise known as beta ray/beta radiation is a high speed electron/positron emitted from radioactivity decay of an atomic nucleus during the process of beta decay
What is a beta particle equation
- 0
C—> N. + e
- 0
- -1
Gamma ray? (Y)
Otherwise known as gamma radiation is a penetrating form of electromagnetic radiation arising from the decay of a atomic nucleus
Nucleons?
Subatomic particles found in the nucleus
Alpha decay?
Atomic number decreases by two, mass number will decrease by four
Beta-decay
Atomic number increases by one,mass number stays the same
Beta + decay
Atomic number decreases by one mass number stays the same
Gamma decay
Atomic number and mass number unchanged