Question

how do you determine the number of neutrons an element has?
o a is the mass number minus atomic number
o b is the atomic number
o c is the atomic mass
o d is the atomic mass plus atomic number

Explanation:

The number of neutrons in an atom is calculated by subtracting the atomic number (number of protons) from the mass number (sum of protons and neutrons). The atomic number gives the number of protons, atomic mass is a weighted average (not directly used in this simple calculation as mass number is for a specific isotope), and adding atomic mass and atomic number is not relevant for neutron count.

Answer:

A. Is the mass number minus atomic number