Which of the following elements has the highest atomic mass?

Helium: 2 protons and 2 neutrons
Nitrogen: 7 protons and 7 neutrons
Oxygen: 8 protons and 8 neutrons
Hydrogen: 1 proton and no neutrons

Respuesta :

baeest
I believe oxygen is your answer.
The answer to the question is oxygen (c)

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