Calculation of the number of protons, electrons and neutrons knowing A and Z (8283)

, por F_y_Q

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If Z = 47 and A = 108, how many electrons, protons, and neutrons does this element have?

P.-S.

The atomic number is, by definition, the number of protons in an element. Therefore, the number of protons is 47. If the element is neutral, it must have the same number of electrons as protons to ensure the sum of the charges is zero. Therefore, it has 47 electrons. To determine the number of neutrons, subtract the atomic number from the atomic mass, which is the sum of protons and neutrons:

(108 - 47) = 61 neutrons.