2006-12-30 06:08:20 · 2 answers · asked by Master 2 in Science & Mathematics ➔ Chemistry
Because Balmer is the one who discovered it
Wavelenght=Blamer constant * (m^2/(m^2-n^2))
n=2
and m> 2
Balmer constant= 364.56nm
2006-12-30 06:17:22 · answer #1 · answered by Suhas 2 · 1⤊ 0⤋
The series of lines produced by the hydrogen electron falling to the n = 1 level is known as the Lyman series; it is in the ultraviolet region of the em spectrum
The series of lines produced by the hydrogen electron falling to the n= 3 level is known as the Balmer series; it is in the visibile region of the em spectrum. The visible region is the region of light with wavelengths approximately 400-700 nm (your 250 is a little low but may still be counted in the violet area).
2006-12-30 14:26:47 · answer #2 · answered by The Old Professor 5 · 2⤊ 0⤋