Half Life 0.0 / 5 ? PhysicsRadioactivityGCSEAQA Created by: SLowtherCreated on: 09-01-17 18:04 What is half life? The time is takes for half the nuclei to decay. 1 of 5 Radioactive decay is... Totally random 2 of 5 What does alpha decay emit? 2 protons and 2 neutrons 3 of 5 What does beta decay emit? A fast moving electron 4 of 5 Describe beta decay A neutron in the nucleus changes into a proton. The mass number stays the same but the atomic number increases 5 of 5
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