Answer :

Final answer:

Aluminum-26, Silicon-28, and Phosphorus-32 have the same number of neutrons.


Explanation:

Aluminum-26 has the same number of neutrons as Silicon-28 since they both have 14 neutrons. Phosphorus-32 also has the same number of neutrons as Aluminum-26 and Silicon-28 with 16 neutrons, but Chlorine-34 has a different number of neutrons.


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