horseluvr676 horseluvr676

08-03-2017
Chemistry

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if an atom has an atomic number of 12 and a mass number of 16 how many protons does it have

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dexteright02 dexteright02

08-03-2017

Data:
z (atomic number)
p (protons)
e (electrons)
A (mass number)

We know that: Z = p = e

Therefore:
Z = 12
P = 12 ← protons

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