Radiation 0.0 / 5 ? PhysicsRadioactivityIGCSECIE Created by: oliviagaillardCreated on: 05-06-14 16:43 34512 Across 1. a electromagnetic wave which is stopped by a big block of metal (5, 4) 5. what a beta particle is (8) Down 2. A particle that is stopped by a sheet of paper (5) 3. what an alpha particle is (13) 4. a particle that is stopped by a thin sheet of aluminium (4)
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