Question

what is the mass of a carbon atom that has 6 protons, 7 neutrons, and 6 electrons?

□amu

Explanation:

Step1: Recall atomic mass formula

Atomic mass (in amu) is approximately the sum of protons and neutrons (electrons have negligible mass).

Step2: Calculate sum of protons and neutrons

Number of protons = 6, number of neutrons = 7. So atomic mass = \( 6 + 7 = 13 \) amu.

Answer:

13