OnlineCBT
Chemistry · Structure of atom
हिन्दीWhat is the energy associated with the first orbit in the hydrogen atom given by \( E_1 = -2.18 \times 10^{-18} \text{ J atom}^{-1} \)? What is the energy associated with the fifth orbit?
Correct answer · Option 2
\( -8.72 \times 10^{-20} \text{ J atom}^{-1} \)
Explanation
Using \( E_n = \frac{-2.18 \times 10^{-18}}{n^2} \), for \( n = 5 \), \( E_5 = \frac{-2.18 \times 10^{-18}}{25} = -8.72 \times 10^{-20} \text{ J atom}^{-1} \).
