True or False 5 points Adding a neutron to an atom changes the atomic mass but not the atomicm number. True False

## Step 1<br />The atomic number of an atom is determined by the number of protons in its nucleus. This is a fundamental principle of atomic structure.<br /><br />## Step 2<br />When a neutron is added to an atom, it increases the atomic mass of the atom because the atomic mass is the sum of the number of protons and neutrons in the nucleus.<br /><br />## Step 3<br />However, the atomic number does not change when a neutron is added because the number of protons in the nucleus remains the same.