1.

The energy required for electron to transist from n = 1 to n = 3 in Li^(+2) is ......

Answer»

12.1 eV
36.3 eV
108.8 eV
122.4 eV

Solution :`E_(N)=(13.6Z^(2))/(n)eV`
For `LI^(++),Z=3`,
`E_(1)=(13.6(3)^2)/((1)^(2))=-122.4eV`
`E_(3)=-(13.6xx(3)^(2))/((3)^(2))=-13.6eV`
`:.DeltaE=E_(3)-E_(1)=-13.6+122.4=108.8eV`


Discussion

No Comment Found

Related InterviewSolutions