NTA Abhyas JEE Main2020ChemistryStructure of AtomPractice
The radial wave equation for hydrogen atom is ψ = 1 16 4 1 a ο 3 2 x - 1 x 2 - 8 x + 12 e - x 2 where x = 2 r a o , a ο = radius of first bohr's orbit the minimum and maximum position of radial nodes from nucleus are:
Options
- Aa ο , 3 a o
- B0.5 a ο , 3 a ο
- C0.5 a ο , a ο
- D0.5 a ο , 4 a ο
Correct answer
B. 0.5 a ο , 3 a ο
Step-by-step solution
For node ψ 2 = 0 , So also Ψ = 0 So for: ψ = 1 16 4 1 a ο 3 2 x - 1 x 2 - 8 x + 12 e - x 2 x - 1 x 2 - 8 x + 12 should be equal to zero x - 1 x 2 - 8 x + 12 = 0 , solve the equation x - 1 x 2 - 8 x + 12 X = 1 , 2 , 6 i . e . r = 0.5 a ο , a ο , 3 a ο ; ∵ x = 2 r a ο So minimum 0.5 a ο maximum 3 a ο