How to find the number of protons and electrons if I already have the number of neutrons?

K so I know how to find the number of neutrons but I dont know how to find the number of protons and electrons with given number of neutrons.Can u plz give an example also.Thnx a tons!!!!!

Answer:

Old Grey Whistle Test

I have a imperial Eastman what can die number for a 3/8 I have 1.050 what size crimper

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if you have not been given the elements name or its atomic number (its number of protons or electrons) then we subtract the number of neutrons from the atomic mass number of prototns so if given an atomic mass of 27 , that it has 14 neutronssubtracting tells us that it has 13 protonsAluminum if the number of neutrons is the only info givenwe can not Identify the element