Let Z represent atomic number,A represent mass number,and N represent the number of neutrons in an atom.Which of the following is correct?
A)N = A + Z
B)Z = A + N
C)N = A - Z
D)A = N - Z

Question

Quizplus · Accepted Answer

The number of neutrons (N) in an atom can be calculated by subtracting the atomic number (Z) from the mass number (A), as the number of neutrons is the difference between the number of protons (which is equal to the atomic number) and the mass number, which represents the total number of protons and neutrons in the nucleus. Therefore, the correct equation is N = A - Z.

Let Z Represent Atomic Number,A Represent Mass Number,and N Represent