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The wavelength of first line of Balmer series in hydrogen atom is 2, the wavelength of first of corresponding double ionized lithium atom is ………… |
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Answer» `(LAMDA)/(3)` Here for first line in Balmer series of hydrogen atom `(1)/(lamda_(H))=Z_(H)^(2)R[(1)/(n_(f)^(2))-(1)/(3^(2))]` For `L_(i),(1)/(lamda_(Li))=Z_(Li)^(2)R[(1)/(2^(2))-(1)/(3^(2))]` `:.(lamda_(Li))/(lamda_(H))=(Z_(H)^(2))/(Z_(Li)^(2))=(1)/(9)""(Z_(Li)=3,Z_(H)=1)` `:.lamda_(Li)=(lamda_(H))/(9)` but `lamda_(H)=lamda:.lamda_(Li)=(lamda)/(9)` |
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