How many protons, electrons, and neutrons make of carbon-13?

It contains 6 protons, 6 electrons and 7 neutrons

Explanation:

it contains 6 protons and 6 electrons because the isotope C-13 is a stable isotope. Number of neutrons can be calculated like this:

13 (mass number=nucleus) - 6 (nr. protons) = 7 (nr. neutrons)

Answer: 6 protons

Explanation: C, 13C, and 14C are isotopes of carbon (Z = 6) and therefore contain six protons. If the atoms are neutral, they also must contain six electrons. The only difference between these isotopes is the number of neutrons in the nucleus.