Structure of Atom

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

Following figure shows spectrum of an ideal black body at four different temperatures. The number of correct statement/s from the following is _______. A. T4> T3> T2> T1 B. The black body consists of particles…

For emission line of atomic hydrogen from $n_{i}=8$ to $n_{f}=n,$ the plot of wave number $\left(\overset{-}{v}\right)$ against $\left(\frac{1}{n^{2}}\right)$ will be: (The Rydberg constant, $R_{H}$ is in wave number…

The graph between $\left|\psi\,\right|^{2}$ and $r$ (radical distance) is shown below. This represents:

The number of electrons present in all the completely filled subshells having $n=4$and $s=+\frac{1}{2}$ is ____ (Where $n=$ principal quantum number and $s=$ spin quantum number)

The number of correct statements from the following is ........... A. For$1s$orbital, the probability density is maximum at the nucleus B. For$2s$orbital, the probability density first increases to maximum and then…

Which of the following is the correct plot for the probability density $\psi\,^{2}\left(r\right)$as a function of distance $'r'$ of the electron form the nucleus for $2s$ orbital?

The work function of sodium metal is$4.41\times\,10^{-19}J.$ If photons of wavelength$300\mathrm{nm}$ are incident on the metal, the kinetics energy of the ejected electrons will be…

The electron in the$n^{\mathrm{th}}$ orbit of $\mathrm{Li}^{2+}$ is excited to $(n+1)$ orbit using the radiation of energy $1.47\times\,10^{-17}J$ (as shown in the diagram). The value of $n$ is ___________ Given…

The energy of an electron in first Bohr orbit of H -atom is -13.6 eV. The magnitude of energy value of electron in the first excited state of $\mathrm{Be}^{3+}$ is ________ eV. (nearest integer value)

A hypothetical electromagnetic wave is show below. The frequency of the wave is \(x \times 10^{19} \mathrm{~Hz}\).$ \(x =\) ______ (nearest integer)

According to the wave-particle duality of matter by de-Broglie, which of the following graph plot presents most appropriate relationship between wavelength of electron $\left(\lambda\,\right)$and momentum of electron…