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Choose a Page:What is inside an atom?What happens when molecules are he...How are atoms split?What is a molecule?How can we use the energy from atoms?*What types of radiation are there?* What types of radiation are there? There are three types of radiation alpha, beta, and gamma. Alpha particles are the least powerful. They cannot pass through paper. Beta particles cannot pass through thin metal, such as aluminium, and gamma rays cannot pass through lead.   Previous: Back Book: Best Ever Q&A Section: Science & Technology Chapter: Atoms & Molecules