kaseyboyer777 kaseyboyer777
  • 26-02-2018
  • Chemistry
contestada

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)
21
11
10
5

Respuesta :

andrewwojtas andrewwojtas
  • 26-02-2018
i believe the answer is 11, its been awhile since i was in science
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r3ckl3ssryd3r r3ckl3ssryd3r
  • 02-03-2018
The atomic mass it 11. 5 Proton and 6 Neutrons is 11 mass. Protons and Neutrons both weigh 1U.
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