The Energy of the Nth Level in a One-Electron Atom $\times$

question 38

Multiple Choice

The energy of the nth level in a one-electron atom is E_n = -13.6(Z²/n²) eV.Consider a beryllium ion with all but one of its electrons removed (a beryllium atom normally has four electrons) .What is the wavelength of a photon emitted when the electron makes the transition from the third-lowest to the lowest energy state?

• A)1.03 \(\times\) 10^-7 m
• B)2.03 \(\times\) 10^-8 m
• C)6.43 \(\times\) 10^-9 m
• D)5.71 \(\times\) 10^-9 m
• E)1.03 \(\times\) 10^-27 m

Recognize trends and statistical facts regarding poverty rates among different demographic groups.

Understand the dynamics of wealth distribution in the United States from 1989 to 2013, including changes in wealth shares for top and bottom wealth holders.

Compare levels of income inequality among different countries.

Analyze the trend of income inequality within specific countries like India and China.