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ಠ_ಠ Need HELP ಠ_ಠ
Element A has 15 protons. Determine the number of neutrons in its isotope with mass number 33.


a) 15



b)18



c)33



d)48

Respuesta :

JoannaBlackwelder
Mass number represents the sum of the protons and the neutrons.

Mass number = # protons + # neutrons

So, since we are given the mass number and the number of protons, we can plug those in to find the number of neutrons.

33 = 15 + ?

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