This energy diagram shows the allowed energy levels of an electron in a certain atom. $($Note: the SI prefix 'zepto' means ${10}^{-21}.$ You can find the meaning of any SI prefix in the ALEKS Data tab.$)$

Use this diagram to complete the table below.

$\backslash$table$[[$What is the energy of the electron in the ground state?,$],[\backslash$table$[[$What is the energy of the electron in the first excited$],[$state$?]],],[\backslash$table$[[$If the electron makes the transition shown by the red$],[$arrow$,$ from A to B$,$ will a photon be absorbed or$],[$emitted$?]],$absorbed$],[\backslash$table$[[$Calculate the wavelength of the photon that would be$],[$absorbed or emitted. Round your answer to $3],[$significant digits.$]],$emitted$]]$