Respuesta :

Answer:

A positron particle  

Explanation:

  • When 2714Si undergoes radioactive decay to form 2713al then it must have undergone a positron emission.
  • When a particle undergoes positron emission, the mass number remains constant while the atomic number decreases by 1.
  • A positron particle has the same mass with an electron, however, unlike an electron it has a positive charge.

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