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A hydrogen like specie is in a spherical symmetrical orbital `S_(1)` having 3 radial node. It gets dexcited to another level `S_(2)` having no radial node. Energy of `S_(2)` orbital is 2.25 times energy of 1st bohr orbit of hydrogen atom. Based on this information answer the questions that follow. Identify the specie involvedA. `He^(+)`B. `Be^(+3)`C. `Li^(+2)`D. `B^(+4)`

Answer» Correct Answer - D
`S_(2)=2.25 (S_(1))_(H)`
`13.6xx(Z^(2))/(n^(2)) =9/4 xx 13.6`
`Z=3 rArr Li^(2+)`


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