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Element Z has a half-life of 60 minutes. Which of the following statements is true regarding 4 nuclei of element Z after 180 minutes? O

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Element Z has a half-life of 60 minutes. Which of the following statements is true regarding 4 nuclei of element Z after 180 minutes? O Half of the last remaining nucleus will decay There will be 4 nuclei left O There will be 2 nuclei left. There is a 50% chance the last remaining nucleus will have decayed

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