Question

1. complete the equation in the table below. number of neutrons = ___________ - ___________

Explanation:

Step1: Recall the formula for neutrons

In atomic structure, the mass number (A) of an atom is the sum of the number of protons (Z) and neutrons (N), i.e., \( A = Z + N \). Rearranging this formula to solve for the number of neutrons gives \( N = A - Z \), where \( A \) is the mass number and \( Z \) is the atomic number (number of protons).

Step2: Fill in the blanks

So, the number of neutrons is equal to the mass number minus the atomic number (or number of protons).

Answer:

Number of neutrons \( = \) Mass number \( - \) Atomic number (or Number of protons)