The ratio between the first three orbits of hydrogen atom is
A. 1 : 2 : 3
B. 2 : 4 : 6
C. 1 : 4 : 9
D. 1 : 3 : 5
Answer:C
The ratio between the first three orbits of hydrogen atom is
A. 1 : 2 : 3 B. 2 : 4 : 6 C. 1 : 4 : 9 D. 1 : 3 : 5