Using the formula above, what is the wavelength of light emitted between the 2^{nd}2 nd and 1^{st}1 st energy levels? using the Rydberg equation

What is the cellular process that releases the energy stored in food molecules

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.