Consider the following:I. The electron spin q | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Statement $I$ is incorrect because the electron spin quantum number describes the orientation of the spin of the electron, not the nucleus.Stateme

Vedclass · Accepted Answer

$II$ $\&$ $IV$ only

Vedclass · Answer

(A) Statement $I$ is incorrect because the electron spin quantum number describes the orientation of the spin of the electron, not the nucleus.Statement $II$ is correct because orbitals with the same $n$ and $l$ values (degenerate orbitals) have the same energy in the absence of an external magnetic field.Statement $III$ is incorrect because the energy of a photon $(E = h
u = \frac{hc}{\lambda})$ is inversely proportional to the wavelength $(\lambda)$ and directly proportional to the wave number $(\bar{
u} = \frac{1}{\lambda})$.Statement $IV$ is correct because the Lyman series corresponds to electronic transitions to the $n=1$ energy level, which emits radiation in the ultra-violet region.Therefore, statements $II$ and $IV$ are correct.

$A$. Energy of ground state of $He^+$	$i$. $+6.04 \text{ eV}$
$B$. Potential energy of $I$ orbit of $H$ atom	$ii$. $-27.2 \text{ eV}$
$C$. Kinetic energy of $II$ excited state of $He^+$	$iii$. $8.72 \times 10^{-18} \text{ J}$
$D$. Ionization potential of $He^+$	$iv$. $-54.4 \text{ eV}$

Similar Questions

In the transition of an electron in an atom,its kinetic energy changes from $y$ to $y/4$. The change in $P.E.$ will be

What is the ratio of time periods in the $3^{rd}$ orbit of $H^{-}$ atom to the $2^{nd}$ orbit of $He^{+}$ ion?

Vedclass Test Series

Exam Paper Generator

Online Exam Module