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solmaris [256]
3 years ago
12

If a neutral atom of boron (B) contains 5 protons, 5 electrons and 6 neutrons, what is the mass number of this atom? (2 points)

Chemistry
2 answers:
viktelen [127]3 years ago
7 0
The atomic mass it 11. 5 Proton and 6 Neutrons is 11 mass. Protons and Neutrons both weigh 1U.
Shkiper50 [21]3 years ago
6 0
I believe the answer is 11, its been awhile since i was in science
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