* Understand Alpha Decay: Alpha decay involves the emission of an alpha particle, which is essentially a helium nucleus (2 protons and 2 neutrons). This reduces the atomic mass by 4 and the atomic number by 2.
* Francium-223 to Bismuth-215:
* Francium-223 has an atomic mass of 223 and an atomic number of 87.
* Bismuth-215 has an atomic mass of 215 and an atomic number of 83.
* Calculate the Difference:
* Atomic mass difference: 223 - 215 = 8
* Atomic number difference: 87 - 83 = 4
* Determine Alpha Emissions:
* Since each alpha decay reduces the atomic mass by 4, we need 8/4 = 2 alpha emissions.
Therefore, 2 alpha emissions would convert Francium-223 to Bismuth-215.
