Frequently Asked Question

Questions asked by users might not always be phrased in the clearest way.

The reaction of an alpha particle with Al-27 produces a neutron and what other nuclide?rnp-30rnna-23rnne-20rnmg-24

Accepted Answer

The correct answer is P-30. Here's why:

Alpha decay: An alpha particle is a helium nucleus (²⁴He) consisting of two protons and two neutrons.
Nuclear reaction: The reaction can be written as:
²⁷Al + ⁴He → ¹n + ³⁰P
Balancing: The atomic and mass numbers on both sides of the equation must balance. The neutron (¹n) has a mass number of 1 and an atomic number of 0. To balance the equation, the other product must have a mass number of 30 and an atomic number of 15 (phosphorus, P).


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