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Patterns from electron transitions between energy levels
nf=1n_f = 1nf=1, ultraviolet
nf=2n_f = 2nf=2, visible
nf=3n_f = 3nf=3, infrared
Lowest energy level (n=1n = 1n=1 for H)
Removing an electron from an atom completely
E=hfE = hfE=hf
6.626×10−346.626 \times 10^{-34}6.626×10−34 J·s
1λ=R(1nf2−1ni2)\frac{1}{\lambda} = R\left(\frac{1}{n_f^2} - \frac{1}{n_i^2}\right)λ1=R(nf21−ni21)
1.097×1071.097 \times 10^71.097×107 m−1^{-1}−1
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