ACİİİL CEVAPLARMISINIZ saydam maddelerin kırıcılık özellikleri arasındaki fark azaldıkça ışık ışınlarnın kırılma açısı artar doğ
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Answer:
4
Explanation:
Relationship between wavenumber and Rydberg constant (R) is as follows:
Here, Z is atomic number.
R=109677 cm^-1
Wavenumber is related with wavelength as follows:
wavenumber = 1/wavelength
wavelength = 253.4 nm
Z fro Be = 4
Therefore, the principal quantum number corresponding to the given emission is 4.