What is the most probable distance of a 1s electron in a He ion. The wave function for 1s orbital is given by , where = radius of first Bohr's orbit in H-atom = 52.9 pm.

Question

What is the most probable distance of a 1s electron in a He$^+$ ion. The wave function for 1s orbital is given by $\psi = \sqrt{\frac{Z^3}{\pi a_0^3}} e^{-Zr/a_0}$, where $a_o$ = radius of first Bohr's orbit in H-atom = 52.9 pm.

Prashant Kotian · Accepted Answer

Correct answer: D. The most probable distance for a 1s electron in a hydrogen-like species is . For He, . Thus, pm. Therefore, correct answer is D.

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