alleryThe Rydberg constant for hydrogen, in SI units, is
A$1.097 \times 10^{7}\,m^{-1}$
B$1.097 \times 10^{4}\,cm^{-1}$
C$1.097 \times 10^{-7}\,m^{-1}$
D$1.097 \times 10^{2}\,m^{-1}$
Answer & Solution
Correct answer: A. $1.097 \times 10^{7}\,m^{-1}$
$R_H = 1.097 \times 10^7\,m^{-1} = 1.097 \times 10^5\,cm^{-1}$.
Used in Rydberg's formula for hydrogen spectral lines.
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