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A sample of H-atoms excited in a flame has electrons distributed in n=1,2,3,4,&5 energy levels.?
How many different wavelengths of radiation are emitted by the sample according to Bohr theory?
1 Answer
- ReginaldLv 77 years agoFavorite Answer
There are 10 different wavelengths of radiation, emitted by electrons as they lose
energy falling from higher levels back to lower ones. Consider all the possibilities:
From level 5, an electron can go to level 4, 3, 2, or 1 - 4 possible jumps
From level 4 it can drop to level 3, 2, or 1 - 3 more possible jumps
From level 3 it can drop to level 2 or 1 - 2 more possible jumps
and from level 2 it can drop to level 1 - 1 more possible jump
Add them all up: 4 + 3 + 2 + 1 = 10 possible jumps, each one with its own
particular wavelength of radiation emitted.
Source(s): college physics
