Question

concept of nodal planes ?? structure of atom

Answer 1

An orbital is the region of space around the nucleus within which the probability of finding an electron of given energy is maximum.

The probability at any point around the nucleus is calculated using schrodinger wave equation and is represented by the density of the points.

Shape of s orbital

For the coordinates( x, y, z) of the electron with respect to the nucleus ,schrodinger Wave equation can be solved to get the values of the orbital wave function ψ. But Ψ has no physical significance.The square ψ2  has the significance as it gives the electron probability density of the electron at that point.

1)The probability of 1s electron is found to be maximum near the nucleus and decreases as the distance from the nucleus increases.

2)In case of 2s electrons, the probability is again maximum near the nucleus and then decreases to zero and increases again and then decreases as a distance from the nucleus increases.

3)The intermediate region where probability is zero is called nodal surface or node.

Answer 2

The probability of finding a particular P electron is equal in both the lobes. There is a plane passing through the nucleus on which the probability of finding the electron is almost zero. This is called a nodal plane.
An orbital is the region of space around the nucleus within which the probability of finding an electron of given energy is maximum.

The probability at any point around the nucleus is calculated using schrodinger wave equation and is represented by the density of the points.