Question

As compared to the $1s$ electron of $H-$ atom in ground state, which of the following properties appear(s) in the radial probability density of electron of $H-$ atom in first excited state ?

• A. Spherical node appears
• B. Electron probability density is highest in the vicinity of the nucleus
• C. Probability density drops to zero after maximum probability is reached
• D. Probability density rises to second highest value

Answer 1

Answer: (A), (B), (C), (D)

Probability density rises to second highest value

For $2s-$ electrons of $H-$ atom (first excited state),



For $1s-$ electron of $H-$ atom in ground state,

At point $A,r=a_0$
At point $B,r>a_0$
$\therefore$(a) True (b) True (c) True (d) True