what is most likely true of an atom with a mass of 15 amu?\nthere are 15 protons.\nthere are 15…

what is most likely true of an atom with a mass of 15 amu?\nthere are 15 protons.\nthere are 15 electrons.\nthe total number of protons and electrons is 15.\nthe total number of protons and neutrons is 15.

what is most likely true of an atom with a mass of 15 amu?\nthere are 15 protons.\nthere are 15 electrons.\nthe total number of protons and electrons is 15.\nthe total number of protons and neutrons is 15.

Answer

Answer:

The total number of protons and neutrons is 15.

Explanation:

Step1: Recall atomic mass definition

Atomic mass (in amu) ≈ protons + neutrons.

Step2: Analyze each option

Protons alone don't determine mass, electrons have negligible mass, and it's protons + neutrons that make up atomic mass. So the total number of protons and neutrons is what determines the atomic mass in amu.