rochellehunt72 rochellehunt72

14-01-2021
Chemistry

contestada

If an element has 12 protons, 13 neutrons, and 15 electrons, what is its mass?

Respuesta :

yazewers yazewers

19-01-2021

Answer:

25

Explanation:

mass number = protons + neutrons

= 13 + 12 = 25

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