Electronic transitions in Li2+ ions take place from n2 to n1 shell suc – InterviewSolution

1.	Electronic transitions in Li2+ ions take place from n2 to n1 shell such that:2n2+3n1=18 and 2n2−3n1=6. The total number of photons emitted when electrons transit to n1 shell is x (electrons do not fall lower than n1 shell) and number of photons emitted in the Balmer range is y. Find value of x+y.
Answer» Electronic transitions in $L i^{2 +}$ ions take place from $n_{2}$ to $n_{1}$ shell such that: $2 n_{2} + 3 n_{1} = 18$ and $2 n_{2} - 3 n_{1} = 6$ . The total number of photons emitted when electrons transit to $n_{1}$ shell is x (electrons do not fall lower than $n_{1}$ shell) and number of photons emitted in the Balmer range is y. Find value of $x + y$ .

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