Physics for IGCSE & O level - Atoms And Radioactivity (Section 1 - No. 8)
What type of radioactive decay leads to the emission of a particle with the same mass as an electron but with a positive charge?
Alpha decay
Beta-minus decay
Beta-plus decay
Gamma decay
Explanation
Beta-plus decay emits a positron, which has the same mass as an electron but is positively charged.
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