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**1. Rydberg's Constant: what's the difference between R (sub) infinity & R (sub) H?**

**2. R (sub) H = -2.1799x10^-18 J | R (sub) infinity = 1.0974x10^7 1/m (m = meters)**

**3. No attempt to solve the Q yet; I don't know what's the difference between the two? What do these 2 stand for?**