NDA2016General AbilityGeneral ScienceActual
An atom of carbon has 6 protons. Its mass number is 12 . How many neutrons are present in an atom of carbon?
Options
- A12
- B6
- C10
- D14
Correct answer
B. 6
Step-by-step solution
Mass number = number of proton + number of neutron 12=6+ number of neutron 12-6= number of neutron number of neutron =6