Answer:
B. neutrons I think
Explanation:
carbon -12 contains six protons, six neutrons, and six electrons
carbon -14 contains six protons, eight neutrons, and six electrons
Compared to the common, stable carbon 12 isotope, carbon 14 has two additional neutrons. thus, option B is correct.
An isotope is one of two or more species of atoms of a chemical element that have the same atomic number and location in the periodic table but differ in their atomic weights and physical properties. There are one or more isotopes for every chemical element.
Both isotopes of carbon have six protons in their atoms. Carbon-12 atoms have 6 neutrons, while carbon-14 atoms have 8 neutrons. The number of protons and electrons in a neutral atom are the same, hence a neutral atom of carbon-12 or carbon-14 would have 6 electrons.
Learn more about isotopes here:
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