okaysum705 okaysum705

12-06-2019
Chemistry

contestada

One-twelfth the mass of a carbon atom having six protons and six neutrons

Respuesta :

13-06-2019

Answer:

Is one unified atomic mass unit (u)

Explanation:

It is NOT an atomic mass unit (amu). That unit is obsolete. It was based on oxygen and was replaced in 1961.

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