One nuclide in each of these pairs is radioactive. Predict which is radioactive and which is stable: (a) 40 20Ca and 45 20Ca, (b) 12C and 14C, (c) lead-206 and thorium-230. Explain your choice in each case
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One nuclide in each of these pairs is radioactive. Predict which is radioactive and which is stable: (a) 40 20Ca and 45 20Ca, (b) 12C and 14C, (c) lead-206 and thorium-230. Explain your choice in each case
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