The half-life of radium-224 is about 36 d what approximate, Physics

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The half-life of radium-224 is about 36 d what approximate

1. When the ⁹⁵₃₆Kr nucleus undergoes beta decay, how many protons and neutrons does the daughter nucleus (Rb) contain?

2. The half-life of radium-224 is about 3.6 d. What approximate fraction of a sample remains undecayed after two weeks?

3. How many protons and neutrons does a neutral atom designated as ⁴⁰₁₈X contain?

4. A drug tagged with ⁹⁹₄₃Tc (half-life = 6.05 h) is prepared for a patient. If the original activity of the sample was 2.0 x 10⁴ Bq, what is its activity (R) after it has been on the shelf for 1.6 h?

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Physics: The half-life of radium-224 is about 36 d what approximate

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Physics: The half-life of radium-224 is about 36 d what approximate

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