Types of Radiation

1N None Neutron or Neutrino Heavy water –H2O made with 3H SYMBOL GREEK LETTER NAME STOPPED BY? HARM/NOTES 1N None Neutron or Neutrino Heavy water –H2O made with 3H -Very harmful -Dangerous to eyes -Causes “radiation burns”

1N None 4He = 2p 2 2n Alpha Harmful if swallowed or inhaled SYMBOL GREEK LETTER NAME STOPPED BY? HARM/NOTES 1N None Neutron or Neutrino Heavy water –H2O made with 3H -Very harmful -Dangerous to eyes -Causes “radiation burns” 4He = 2p 2 2n Alpha Paper Skin Cloth Harmful if swallowed or inhaled

1N None 4He = 2p 2 2n Alpha 0e -1 Beta Wood SYMBOL GREEK LETTER NAME STOPPED BY? HARM/NOTES 1N None Neutron or Neutrino Heavy water –H2O made with 3H -Very harmful -Dangerous to eyes -Causes “radiation burns” 4He = 2p 2 2n Alpha Paper Skin Cloth Harmful if swallowed or inhaled 0e -1 Beta Wood Electrons seperated from nucleus. Can ionize in body and create major problems

1N None 4He = 2p 2 2n Alpha 0e -1 Beta Wood Gamma SYMBOL GREEK LETTER NAME STOPPED BY? HARM/NOTES 1N None Neutron or Neutrino Heavy water –H2O made with 3H -Very harmful -Dangerous to eyes -Causes “radiation burns” 4He = 2p 2 2n Alpha Paper Skin Cloth Harmful if swallowed or inhaled 0e -1 Beta Wood Electrons seperated from nucleus. Can ionize in body and create major problems Gamma Nothing stops; slows Lead> concrete > wood > water Effects decrease overtime (gets less harmful as it passes through things)

US Nave Skittle Activity You will be given 4 skittles each color will represent one of the following: -1 alpha particle -1 beta particle -1 gamma particle -1 neutron   You must decide how to best protect yourself from the harmful effects of those four types of radiation. You may…. -eat one -hold one -put one in your pocket -throw one away (ie. set on your desk out of the way) You have 30 seconds to decide what to do….GO! Record your results and how you decided:

EAT HOLD POCKET TOSS

Homework: 25.3 p813 #15-20