Teaching Haryana (HPSC) Assistant Professor Mock Test 2025 Chemical Sciences Basic Principles of Quantum Mechanics Basic Postulates
The average radius (rav), at which an electron will be found when it occupies a 1S orbital of a hydrogenic atom with atomic number Z
\({{\Psi _{1s}}\left( r \right) = {1 \over {\sqrt \pi }}{{\left( {{Z \over {{a_o}}}} \right)}^{{3 \over 2}}}{e^{ - {{zr} \over {n{a_o}}}}}}\)
1
\({{3{a_o}} \over {2Z}}\)
2
\({{{a_o}} \over Z}\)
3
\({{{a_o}} \over {2Z}}\)
4
\({{3{a_o}} \over {Z}}\)
5
Question Not Attempted