Q. Which scientist gave the concept of fixed energy levels around the nucleus?
A. Ernest Rutherford
B. Neils Bohar
C. J.J.Thomsan
D. None of these
Answer: Neils Bohar
A. Ernest Rutherford
B. Neils Bohar
C. J.J.Thomsan
D. None of these
Answer: Neils Bohar