Question

Write the Rydberg formula & explain the terms

Answer 1

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1/λ = RZ2(1/n12 - 1/n22)

• λ =wavelength of the photon

• (wavenumber = 1/wavelength)

• R = Rydberg's constant (1.097x 107 m-1)

• Z = atomic number of the atom

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Answer 2

Answer:

$\Delta E=-R_{H} (\frac{1}{n_{f}^{2}} +\frac{1}{n_{i}^{2}})$

Explanation:

$\Delta E=-R_{H} (\frac{1}{n_{f}^{2}} +\frac{1}{n_{i}^{2}})$

Where ΔE is a difference in energy level between final and initial.

$R = Rydberg constant=10973731.6 m^{-1}$

$Z=Atomic No$

$n_{f} = final level$

$n_{i} = intial level$

Rydberg labored on a system in 1880 that defined the connection among the wavelengths in alkali metallic spectral traces. He noticed that relics shaped a chain and located that adopting the wavenumber (the wide variety of waves filling a unit length, identical to 1/lambda, the inverse of the wavelength) as his size unit simplified his calculations. He positioned the wavenumbers (n) of following traces in every collection towards consecutive integers that contemplated the road order. When he noticed that the ensuing curves had been all of the equal shapes, he discovered an unmarried characteristic that might create them with the proper constants.