A student wants to draw a model of an atom. Which statement describes how to find the number of neutrons to include in the model?(1 point) Responses Add the atomic number and the mass number. Add the atomic number and the mass number. Add the number of electrons to the number of protons. Add the number of electrons to the number of protons. Subtract the atomic number from the mass number. Subtract the atomic number from the mass number. Subtract the number of electrons from the number of protons.

Answer 1

The correct statement to describe how to find the number of neutrons to include in the model of an atom is:

Subtract the atomic number from the mass number.

This is because the atomic number represents the number of protons (and also the number of electrons in a neutral atom), and the mass number represents the total number of protons and neutrons. Therefore, the number of neutrons can be calculated by subtracting the atomic number (number of protons) from the mass number:

Number of neutrons = Mass number - Atomic number.