The number of given orbitals which have electron density along the axis is \_\_\_\_ $\mathrm{p}_{\mathrm{x}}$, $\mathrm{p}_{\mathrm{y}}$, $\mathrm{p}_{\mathrm{z}}$, $\mathrm{d}_{\mathrm{xy}}$, $\mathrm{d}_{\mathrm{yz}}$, $\mathrm{d}_{\mathrm{xz}}$, $\mathrm{d}_{\mathrm{z}^2}$, $\mathrm{d}_{\mathrm{x}^{2}-\mathrm{y}^{2}}$

JEE Main · 2023 · 25 Jan 2023 · Shift 2 · Atomic Structure

The number of given orbitals which have electron density along the axis is ____

p_{x}

p_{y}

p_{z}

d_{xy}

d_{yz}

d_{xz}

d_{z^{2}}

d_{x^{2} - y^{2}}

Answer: 5

Orbitals whose lobes lie along the Cartesian axes are the three p orbitals together with the two d orbitals directed along the axes. Each of

p_{x}

p_{y}

and

p_{z}

points along its own axis. Among the d orbitals

d_{z^{2}}

concentrates its density along the z-axis and

d_{x^{2} - y^{2}}

along the x and y axes, whereas

d_{xy}

d_{yz}

and

d_{xz}

point between the axes. The number of orbitals with electron density along the axis is five.

JEE Main · 2023 · 25 Jan 2023 · Shift 2 · Integer answer