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Andreyy89
3 years ago
10

Which of the following isotopes has the same number of neutrons as phosphorus – 21 (atomic number 15)

Chemistry
1 answer:
agasfer [191]3 years ago
3 0
The number of neutrons in phosphorus-21 is 16 (21-15).

Therefore the answer is B. Sulfur-32 also has 16 neutrons (32-16).

Hope this helps :)
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