An Atom with _______ Has an Atomic Mass of 14

Question

An atom with _______ has an atomic mass of 14.
A) 14 neutrons
B) 14 electrons
C) 7 neutrons and 7 protons
D) 7 protons and 7 electrons
E) 6 electrons and 8 neutrons

Accepted Answer

The atomic mass of an atom is equal to the sum of its protons and neutrons. Since the atom has an atomic mass of 14, it must have 7 protons (which is the atomic number of the element) and 7 neutrons (14 - 7 = 7). Therefore, choice C, which has 7 neutrons and 7 protons, is the correct answer.