Flashcards
P6-Radioactive Materials
Cards in this deck (15)
- 1Alpha ParticlesMost Ionising
Least Penetrating-paper/skin - 2Beta ParticlesMid Ionising
Mid Penetrating-thin metal - 3Gamma RaysLeast Ionising
Most Penetrating - lead - 4Nuclear Fusionwhen two hydrogen nuclei are brought close together and fuse
-releases a lot of energy - 5Isotopesatoms of an element that have a differet mass number due to a different number of neutrons
- 6E=mc2E=energy produced
M=change in mass
C=speed of light
calculates energy released during fission+fusion - 7Alpha Decaywhen alpha particles is emitted from the nucleus=lost 2p+2n
atmos mass-4, atomic number-2
=new element, 2 places back - 8Beta Decayneutron changes into p + an e
p stays+e leaves atom (b particles)
nucleus-1+p,1-n
atomic number+1 - 9Half Lifetime taken for number of atoms to halve (decay)
- 10Radioactive Decaywhen unstable atoms break down and change into a different type of atom
- 11Background Radiationcosmic rays, plants, animals, rocks
- 12Irridationcells are directly damaged by radiation of a material
- 13Contaminationdamage produced by inhaled radiation
- 14Radiotherapyusing high doses of ionising radiation to kill cancerous cells
x-rays or in body - 15Sterilisationgamma radiation kills microorganisms
Information
- Description
- Physics (P6) Flashcards on P6-Radioactive Materials, created by gatha.jayamohan on 09/03/2014.
- Created by
- gatha.jayamohan
- Views
- 163
- Tags
- Rating