A single electron in an orbital has quantum numbers n = 3, ℓ = 0, mℓ = 0, ms =-½. What are the quantum numbers for the next electron added to this orbital?

Determine the  wavelength of light emitted when an electron  in an li2+ ion  makes a transition from an orbital with n  =  6 to an orbital with n  = 5.

C. 1s22s22p63s23p43d104s24p5

16- counting by fours

Answer:

a. energy is absorbed in the reaction.

explanation:

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.