Identify which of the following change when neutrons are added to an atom.Mass numberNet chargeAtomic numberThe atom's mass

Mass Number: The mass number of an atom changes when neutrons are added. The mass number is the sum of protons and neutrons in an atom. So, if you add or remove neutrons, the mass number will change.

Net Charge: The net charge of an atom does not change when neutrons are added. Neutrons are neutral particles, they do not carry any charge. Therefore, adding or removing them does not affect the net charge of the atom.

Atomic Number: The atomic number of an atom does not change when neutrons are added. The atomic number is determined by the number of protons in an atom. Since adding or removing neutrons does not affect the number of protons, the atomic number remains the same.

The Atom's Mass: The atom's mass changes when neutrons are added. Neutrons contribute to the mass of an atom. Therefore, adding or removing neutrons will change the atom's mass.