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svlad2 [7]
3 years ago
13

Calculate the number of neutrons of 239Pu.

Chemistry
2 answers:
MrRissso [65]3 years ago
5 0
145 since it’s the mass number plus protons I think
Kryger [21]3 years ago
5 0

Answer:145 since it’s the mass number plus protons

Explanation: brainly pls

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