Question Detail
Question
What is the atomic mass of an aluminum atom with 13 protons and 14 neutrons?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Atomic mass is the sum of protons and neutrons in an atom. For aluminum with 13 protons and 14 neutrons, the atomic mass is 13 + 14 = 27 atomic mass units.
Hint
Add the number of protons and neutrons to calculate the atomic mass.