Question

Which of the following is the best description of what the atomic mass of an element is roughly equivalent to?

A. The number of protons
B. The number of electrons
C. The number of neutrons
D. The number of protons plus the number of electrons
E: The number of protons plus the number of neutrons

Answer 1

I believe its E

Step-by-step explanation:

Atomic mass = atomic number + amount of neutrons

Atomic number = amount of protons

Therefore Atomic mass is the amount of protons plus the amount of neutrons so your answer would be E.