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Which of the following is the correct set of $4$ quantum numbers for the $19^{th}$ electron in Chromium (Atomic number = $24$) in accordance with the Aufbau principle?
- A$n=3, l=2, m=+2, s=+\frac{1}{2}$
- B$n=3, l=2, m=-2, s=+\frac{1}{2}$
- C$n=4, l=1, m=0, s=+\frac{1}{2}$
- D$n=4, l=0, m=0, s=+\frac{1}{2}$
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Which of the following is not paramagnetic?
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View SolutionThe maximum number of electrons that can be accommodated in a shell with $n=4$ is:
The number of given orbitals which have electron density along the axis is $..........$. $p_{x}, p_{y}, p_{z}, d_{xy}, d_{yz}, d_{xz}, d_{z^2}, d_{x^2-y^2}$
The wave function $(\Psi)$ of $2s$ is given by
$\Psi_{2s} = \frac{1}{2\sqrt{2\pi}} \left(\frac{1}{a_0}\right)^{3/2} \left(2 - \frac{r}{a_0}\right) e^{-r/2a_0}$
At $r = r_0$,a radial node is formed. Thus,$r_0$ in terms of $a_0$ is:
$\Psi_{2s} = \frac{1}{2\sqrt{2\pi}} \left(\frac{1}{a_0}\right)^{3/2} \left(2 - \frac{r}{a_0}\right) e^{-r/2a_0}$
At $r = r_0$,a radial node is formed. Thus,$r_0$ in terms of $a_0$ is:
$A$ filled or half-filled set of $p$ or $d$-orbitals is spherically symmetric. Point out the species which has spherical symmetry.
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