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AP EAMCET2012PhysicsNuclear Physics

The half-life of Ra ²²⁶ is 1620 years. Then the number of atoms decay in one second in 1 ~g of radium (Avogadro number =6.023 10²³ )

Options

  1. A4.23 10^9
  2. B3.16 10¹⁰
  3. C3.61 10¹⁰
  4. D2.16 10¹⁰

Correct answer

C. 3.61 10¹⁰

Step-by-step solution

The number of atoms decay in one second d N d t = N aligned & = 0.693 1620 365 86 400 6.023 10²³ 226 & =3.61 10¹⁰ aligned

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