What transition of Li2+ can emit a photon with same wave number as n = 2 to n =1 transition of hydrogen atom
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a
n = 6 to n = 4
b
n = 6 to n = 3
c
n = 4 to n = 2
d
n = 5 to n = 2
answer is B.
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Detailed Solution
n = 2 to n= 1 in H-atom, v¯=RHZ2112-122for Li+2 , v¯=RH321n12-1n22Given RH11-14=9RH1n12-1n2219-136=1n12-1n22∴n1=3 and n2=6will be the electronic transition in Li+2