8.1 Summary Notes - Biological effectsOf Radiation Flashcards
Radioactive
Spontaneously emit energy as particles: alpha, beta, or gamma
What can alpha, beta, or gamma radiation be called?
Ionizing radiation.
What is the symbol of, nature of particle, and penetrating ability of
Alpha radiation
α2+ or 4 α
2
He nucleus
Paper
What is the symbol of, nature of particle, and penetrating ability of
Beta radiation
β- or 0 β
-1
High speed electrons
Cardboard
What is the symbol of, nature of particle, and penetrating ability of
Gamma radiation
γ or 0 γ
0
High energy photons (EMR)
Metal
What is the danger of a radioactive substance related to?
Type of radiation produced
Activity of the substance
Activity
The amount of radiation produced in a given time
Dependent on the stability and the amount of the radioactive substance
How can safety be improved when working with radioactive material?
Decreasing exposure time
Increasing distance between people and the radioactive material
Increasing the shielding used
Is UV a type of nuclear radiation?
No. Uv light is not produced through nuclear process. It is produced when electrons within an atom make a transition to a lower energy level.
What is the most dangerous type of radiation for biological organisms?
Alpha radiation
