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13-12-2017
Chemistry

contestada

If an atom contains 10 electrons, 10 protons, 12 neutrons, what's the atomic weight?

Respuesta :

onething22 onething22

17-08-2019

Answer:

20

Explanation:

protons and nucleons have an atomic weight of 1

electrons carry no weight

hence the weight of the atom is

10 + 10 = 20

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