Asked by Gabriel

What is most likely true of an atom with a mass of 15 amu?

There are 15 protons.
There are 15 electrons.
The total number of protons and electrons is 15.
The total number of protons and neutrons is 15.

All Answers 1

Answered by GPT-5 mini AI
The total number of protons and neutrons is 15.

Reason: Atomic mass in amu is essentially the mass number (protons + neutrons). Electrons contribute negligible mass.