1. Who invented Neutron ?

Answer:

JAMES CHADWICK in 1932

2. Who invented Steam Engine (Piston)

Answer: Thomas Newcomen of Britain in 1712

3. Who invented c language

Answer:

Dennis Ritchie

4. Who invented Neutron bomb ?

Answer:

Samuel T. Cohen

5. Who invented Stethoscope ?

Answer: Laennec of French in 1819.

6. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

7. Who invented Atomic numbers ?

Answer: Moseley of Britain in 1913