QJEEM23Chd0af: JEE Main 2023 Chemistry - Class 11 JEEM23Chd0af Solution: The wave function of is given by At , radial node is formed.…

Question

Verified Solution • 2025–26 Session moderate

The wave function

(\Psi)

of

2 \mathrm{~s}

is given by

\Psi_{2 \mathrm{~s}}=\frac{1}{2 \sqrt{2 \pi}}\left(\frac{1}{a_0}\right)^{1 / 2}\left(2-\frac{r}{a_0}\right) e^{-r / 2 a_0}

At

r=r_0

, radial node is formed. Thus,

r_0

in terms of

a_0

Accepted Answer

For radial node ${\psi _{2s}} = 0$

$\therefore$ $r = 2{a_0}$

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