A student wants to draw a model of an atom which statement describes how to find the numbers of neutrons to include in the model A subtract the atomic number from the mass number B add the atomic number and the mass number C subtract the number of electrons from the number of protons D add the number of electrons to the number of protons

Answer 1

The correct statement for finding the number of neutrons to include in a model of an atom is:

A. Subtract the atomic number from the mass number.

The atomic number represents the number of protons in the atom, while the mass number (which is approximately the total number of protons and neutrons) indicates the total number of protons and neutrons in the nucleus. Therefore, subtracting the atomic number (number of protons) from the mass number gives you the number of neutrons.