**Neutrons | Science GK Questions MCQs Quiz**

**1. What is Neutron ?**

**Answer:** A neutron is a subatomic particle with roughly the same mass as proton, but with a neutral electric charge.

**2. Who discovered the neutron ?**

**Answer:** James Chadwick

**3. Where are neutrons located in an atom ?**

**Answer:** Neutrons along with protons are bounded together in the dense inner core of an atomic nucleus.

**4. How can a neutron become a proton ?**

**Answer:** Using beta decay, a neutron can be converted into a proton with an emission of an electron accompanied by an antineutrino.

**5. What charge does a neutron have ?**

**Answer:** It has no electric charge.

**6. How to find the number of neutrons in an atom ?**

**Answer:** The number of neutrons in an atom can be calculated by subtracting the atomic number from the atomic mass.

**7. What is the mass of a neutron ?**

**Answer:** The rest mass of a neutron is equal to 1.67493 × 10−27 kg.

**8. How many neutrons does oxygen have ?**

**Answer:** 8 neutrons

**9. How many neutrons does nitrogen have ?**

**Answer:** 8 neutrons

**10. How many neutrons does the element Iodine have ?**

**Answer:** 74 neutrons

**11. How many neutrons does aluminum have ?**

**Answer:** 14 neutrons

**12. How many neutrons does phosphorus-32 have ?**

**Answer:** 17 neutrons

**13. How many neutrons does carbon have ?**

**Answer:** 6 neutrons

**14. How many neutrons does potassium have ?**

**Answer:** 20 neutrons

**15. How many neutrons does sodium have ?**

**Answer:** 12 neutrons

**16. How many neutrons does lithium have ?**

**Answer:** 4 neutrons

**17. How many neutrons does hydrogen have ?**

**Answer:** Hydrogen does not have any neutron.

**18. How many neutrons does chlorine have ?**

**Answer:** 18 neutrons

**19. How many neutrons does fluorine have ?**

**Answer:** 10 neutrons

**20. How many neutrons does neon have ?**

**Answer:** 10 neutrons

**21. How many neutrons does boron have ?**

**Answer:** 6 neutrons

**22. How many neutrons does helium have ?**

**Answer:** 2 neutrons

**23. How many neutrons does magnesium have ?**

**Answer:** 12 neutrons

**24. How many neutrons does silver have ?**

**Answer:** 61 neutrons

**25. How many neutrons does calcium have ?**

**Answer:** 20 neutrons

**26. How many neutrons does beryllium have ?**

**Answer:** 5 neutrons

**27. How many neutrons does silicon have ?**

**Answer:** 14 neutrons

**28. How many neutrons does sulfur have ?**

**Answer:** 16 neutrons

**29. How many neutrons are in oxygen ?**

**Answer:** 8 neutrons

**30. How many neutrons does argon have ?**

**Answer:** 22 neutrons

**31. How many neutrons does iron have ?**

**Answer:** 30 neutrons

**32. How many neutrons are in chlorine ?**

**Answer:** 18 neutrons

**33. How many neutrons does bromine have ?**

**Answer:** 45 neutrons

**34. How many neutrons does gold have ?**

**Answer:** 79 protons

**35. How many neutrons does copper have ?**

**Answer:** 36 neutrons

**36. How many neutrons does zinc have ?**

**Answer:** 35 neutrons

**37. How many neutrons does lead-208 have ?**

**Answer:** 126 neutrons

**38. How many neutrons does tungsten-180 have ?**

**Answer:** 106 neutrons

**39. How many neutrons does uranium-235 have ?**

**Answer:** 143 neutrons

**40. How many neutrons does krypton have ?**

**Answer:** 48 neutrons

**41. How many neutrons does titanium-48 have ?**

**Answer:** 26 neutrons

**42. Can there be less neutrons than proton ?**

**Answer:** As of now, there are only two stable nuclides that have fewer neutrons than protons – hydrogen-1 and helium-3.

**43. How many neutrons does barium have ?**

**Answer:** 82 neutrons

**44. How many neutrons does chromium-54 have ?**

**Answer:** 30 neutrons

**45. How many neutrons does cobalt have ?**

**Answer:** 33 neutrons

**46. How many neutrons does mercury have ?**

**Answer:** 122 neutrons

**47. How many neutrons does nickel have ?**

**Answer:** 30 neutrons

**48. How many neutrons does technetium-99 have ?**

**Answer:** 56 neutrons

**49. How many neutrons does arsenic-75 have ?**

**Answer:** 42 neutrons

**50. How many neutrons does tin have ?**

**Answer:** 69 neutrons