Constants & Units · constant
Rydberg constant
R_∞ = 1.097 373 156 8157(12) × 10⁷ m⁻¹
- Unit
- m⁻¹
- Value
- 1.097 373 156 8157(12) × 10⁷
- Exact
- no
- Note
- The most precisely measured constant of all, to twelve digits — hydrogen's spectrum is that sharp.
- Symbol
- R_∞
- Category
- Atomic & nuclear
- Numeric
- 10973731.568157
- Uncertainty
- ±1.1 × 10⁻¹² relative
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