Given below are two statements. One is labell | vedclass

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

Question

(A) For a hydrogen-like atom or ion,the energy of an orbital depends only on the principal quantum number $n$. However,for multi-electron atoms like l

Vedclass · Accepted Answer

Both $A$ and $R$ are true and $R$ is the correct explanation of $A$.

Vedclass · Answer

(A) For a hydrogen-like atom or ion,the energy of an orbital depends only on the principal quantum number $n$. However,for multi-electron atoms like lithium $(Z=3)$,the energy of an orbital depends on both $n$ and the effective nuclear charge $(Z_{eff})$.As the atomic number $(Z)$ increases,the effective nuclear charge increases,which leads to a stronger attraction between the nucleus and the electrons.Consequently,the energy of the same orbital (e.g.,$2s$) decreases as the atomic number increases.Therefore,the energy of the $2s$ orbital in hydrogen $(Z=1)$ is higher than that in lithium $(Z=3)$.Both Assertion $A$ and Reason $R$ are correct,and $R$ correctly explains $A$.

Column $I$	Column $II$
$A$. Orbital angular momentum of the electron in a hydrogen-like atomic orbital	$p$. Principal quantum number
$B$. $A$ hydrogen-like one-electron wave function obeying Pauli principle	$q$. Azimuthal quantum number
$C$. Shape,size and orientation of hydrogen-like atomic orbitals	$r$. Magnetic quantum number
$D$. Probability density of electron at the nucleus in hydrogen-like atom	$s$. Electron spin quantum number

Similar Questions

What is the maximum number of electrons that can be accommodated in a shell with principal quantum number $n = 4$?

Which of the following explains the sequence of filling the electrons in different shells?

$A$ subshell with $l = 2$ is called?

What is the spin magnetic moment of an electron,excluding its orbital angular momentum?

Vedclass Test Series

Exam Paper Generator

Online Exam Module