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Question: A Li<sup>++</sup> ion and hydrogen ion are both in the second excited state. If l<sub>H</sub> and l<...

A Li++ ion and hydrogen ion are both in the second excited state. If lH and lLi are their respective electronic angular momenta and EH and ELi their respective energies, then –

A

lH > lLiand |EH| > |ELi|

B

lH = lLi and |EH| < |ELi|

C

lH = lLi and |EH| > |ELi|

D

lH < lLi and |EH| < |ELi|

Answer

lH = lLi and |EH| < |ELi|

Explanation

Solution

l = mvr = nh2π\frac{nh}{2\pi}

E µ Z2n2\frac{Z^{2}}{n^{2}}