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B. Sodium-24. How much would be left for each of the radioactive substance Sodium-24 after a day?

Sagot :

Explanation:

radioactive decay of sodium-24

Figure 7: Decay scheme of a radioactive sodium-24 (24Na) nucleus. With a half-life of 15 hours, it decays by beta decay to an excited magnesium-24 (24Mg) nucleus. Two gamma rays are rapidly emitted and the excitation energy is carried off, whereby the stable ground state of magnesium-24 is reached

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