An atom of carbon has 6 protons. Its mass number is 12. How many neutrons are present in an atom of carbon?
12
6
10
14
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC NDA-1 – 2016
Number of protons (Z) = 6
Mass number (A) = 12
Number of neutrons (N) = Mass number (A) – Number of protons (Z) = 12 – 6 = 6.
Thus, there are 6 neutrons in an atom of carbon with mass number 12. This specific isotope is Carbon-12 (¹²C), the most common isotope of carbon.