According to the Bohr Theory, which of the following transitions in th

1.	According to the Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon? (a) n = 6 to n = 1 (b) n = 5 to n = 4 (c) n = 5 to n = 3 (d) n = 6 to n = 5
Answer» (d) n = 6 to n = 5 n = 6 to n = 5 E₆= -13.6 / 6² ; E₅ = – 13.6 / 5² E₆ – E₅ = (-13.6 / 6⁶) – (-13.6 / 5²) = 0.166 eV atom^-1 E₅ – E₄ = (-13.6 / 5²) – (-13.6 / 4²) = 0.306 eV atom^-1

According to the Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon? (a) n = 6 to n = 1 (b) n = 5 to n = 4 (c) n = 5 to n = 3 (d) n = 6 to n = 5

Answer»

(d) n = 6 to n = 5

n = 6 to n = 5

E₆= -13.6 / 6² ; E₅ = – 13.6 / 5²

E₆ – E₅ = (-13.6 / 6⁶) – (-13.6 / 5²)

= 0.166 eV atom^-1

E₅ – E₄ = (-13.6 / 5²) – (-13.6 / 4²)

= 0.306 eV atom^-1