Question

Find the value if rydbergs constant if the energy of electron in tje second orbit in hydrogen atom is -3.4ev

Answer 1

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Rydbergs constant = 109667 per cm
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Answer 2

Answer:

Rh = 2.18×10^-18 J - the value if rydbergs constant if the energy of electron in tje second orbit in hydrogen atom is -3.4ev

Explanation:

E = -3.4 eV = -3.4×1.6×10^-19 J

Energy of electron in nth orbit of an element with atomic number Z is given by -

E = Rh.Z²/n²

For electron in 2nd orbit of hydrogen, Z = 1 & n = 2, E = -3.4 eV

-3.4×1.6×10^-19 = Rh × 1² / 2²

Rh = -3.4×1.6×10^-19 × 4

Rh = 2.18×10^-18 J

Therefore, value of Rydberg constant is 2.18×10^-18 J .