Question

Which one of the following does not represent a
right graph of radial distribution function versus
distance from nucleus?

(1) A&C
(3) A, C&D
(2) A only
(4) C only​

Answer 1

Explanation:

(2) A only

is not right graph

Answer 2

Answer:

The correct answer is option (4) C only​

Explanation:

Radial Distribution Function: Radial distribution function express the relation between the density of electron and the distance from the nucleus.

• Radial probability density function = 4πr²ψ²

         r is the radial distance from nucleus and ψ is the wavefunction.

• The value of Radial probability density function becomes 0 at a value of r. That point is called nodal point.

        The number of nodes = n -l -1

         n = principal quantum number and l = azimuthal quantum number.

• For 1s: number of nodes = 1 - 0 - 1 = 0
• For 2s: number of nodes = 2 - 0 - 1 = 1
• For 4d: number of nodes = 4 - 2 - 1 = 1
• For 3s: number of nodes = 3 - 0 - 1 = 2  

• Among all the options the satisfied one is
• option C because there is one radial node.