Chemistry, asked by briannawoods2, 7 months ago

A Se ion has a mass number of 78 and a charge of −2 . Determine the number of neutrons, protons, and electrons in this ion

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Answered by cuteggie

Answer:answer- 44,78,76
Explanation:since atomic no. Is 34 .
So neutron = 78-34= 44.
Electron= 76.
Proton =78...
I hope it will help you....
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