Q. Consider the following statements : 1.Electron density in $xy$ plane in $3d_{x^{2} - y^{2}}$ orbital is zero 2.Electron density in $xy$ plane in $3d_{\mathcal{z}^{2}}$ orbital is zero 3.$2s$ orbital has only one spherical node 4.For $2p_{\mathcal{z}}$ orbital $y\mathcal{z}$ is the nodal plane The correct statements are
A) 2 and 3
B) 1,2,3,4
C) Only 2
D) 1 and 3
Explanation
(d)
The four lobes of $d_{x^{2} - y^{2}}$ orbital are lying along $x$ and $y$ axes, while the two lobes of $d_{\mathcal{z}^{2}}$ orbital are lying along $\mathcal{z}$-axis, and contain a ring of negative charge surrounding the nucleus in $xy$ plane
$2s$ orbitals has one spherical node, where electron density is zero
$p$-orbital have direction character
Orbital $\longrightarrow p_{\mathcal{z}}\ \ \ \ p_{x}\ \ \ p_{y}$
$\ m \longrightarrow 0\ \ \ \pm 1\ \ \ \ \pm 1$
Nodal plane $\longrightarrow xy\ \ \ \ y\mathcal{z\ \ \ \ z}x$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.