Structure of Atom

The potential energy $(y)$ curve for $H_{2}$ formation asa function of internuclear distance $(x)$ of the $H$ atomsis shown below. The bond energy of $H_{2}$ is :

Which of the following pairs of $d-$orbitals will have the electron density along the axis?

Which one of the following statementsis wrong?

If radius of second Bohr orbit of the $\mathrm{He}^{+}$ion is $105.8\mathrm{pm}$, what is the radius of third Bohr orbit of $\mathrm{Li}^{2+}$ ion?

The angular momentum of electron in $d$-orbital is equal to

$1\mathrm{kg}$ of $0.75$molal aqueous solution of sucrose can be cooled up to $-4^{\circ}C$ before freezing. The amount of ice (in $g$) that will be separated out is ___________. (Nearest integer) [Given :…

Assume that the radius of the first Bohr orbit of hydrogen atom is $0.6\AA\,$. The radius of the third Bohr orbit of $\mathrm{He}^{+}$is _____ picometer. (Nearest Integer)

The number of orbitals with $n=5,m_{1}=+2$ is ________. (Round off to the Nearest Integer)?

Electrons in a cathode ray tube have been emitted with a velocity of $1000\mathrm{ms}^{-1}$. The number of following statements which is/are true about the emitted radiation is Given…

Consider the following pairs of electrons (A) (a) $n=3,l=1,m_{l}=1,m_{s}=+\frac{1}{2}$ (b) $n=3,l=2,m_{l}=1,m_{s}=+\frac{1}{2}$ (B) (a)$n=3,l=2,m_{l}=-2,m_{s}=-\frac{1}{2}$ (b)$n=3,l=2,m_{l}=-1,m_{s}=-\frac{1}{2}$ (C)…

The wave function $\left(\Psi\,\right)$of $2s$ is given by $\Psi\,_{2s}=\frac{1}{2\sqrt{2\pi\,}}\left(\frac{1}{a_{0}}\right)^{1/2}\left(2-\frac{r}{a_{0}}\right)e^{-r/2a_{0}}$ At $r=r_{0}$, radial node is formed. Thus,…

For a metal ion, the calculated magnetic moment is $4.90\mathrm{BM}$. This metal ion has _______ number of unpaired electrons