Question

Carbon exists as three naturally occurring isotopes: C-12, C-13 and C-14. As the number of neutrons increase in the isotope, the nuclear charge:
a. increases
b. decreases
c. remains the same

Answer 1

Answer:

a. increases

I think so ...hope it helps

Answer 2

Answer:

If the number of neutrons increase in the isotope, the nuclear charge  will remain same.

Therefore the option c is correct.

Explanation:

• When the atoms contain identical atomic number but different mass number, they are known as isotopes. We know that the number of protons or electrons is known as atomic number.
• Mass number engages number of neutrons and number of protons.
• Nucleus comprises both neutrons and protons. Protons posses +ve charge while neutrons are neutral. Therefore the nuclear charge because of the protons. It does not affect by the number of neutrons.
• Given isotopes of carbon $C-12, C-13,C-14$   hold distinct number of neutrons but equal number of protons. With increase in number of neutrons, nuclear charge will not change.

Therefore all the isotopes of carbon have same nuclear charge irrespective whatever the number of neutrons.