InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
energy released by e during transition of 3rd balmer series of H atom is used to excite the e present in 4th shell of He+ ion. what is the excited state of He+ ion please give correct answer don't spam it |
|
Answer» Answer: Hope it HELPS u mark aa brainliest Explanation: Given λ 2
=30.4×10 −7 cm λ 1
=108.5×10 −7 cm Suppose EXCITED state of He + is n 2
. The electron falls from n 1
to n 1
and then n 1
to 1 energy LEVEL to emit two successive photons. ∴ λ 2
1
=R H
×Z 2 [ 1 2
1
− n 1 2
1
] or 30.4×10 −7
1
=109678×4[ 1 2
1
− n 1 2
1
] ∴n 1
=2 Now for λ 1
:n 1
=2 and n 2
=n ∴ λ 1
1
=R H
×Z 2 [ 2 2
1
− n 3
1
] or 108.5×10 −7
1
=109678×4[ 2 2
1
− n 2 2
1
] ∴n=5 Thus, the excited state of He + is 5th orbit. |
|