Agaseous sample of this element is bombarded by photons of various energies (in these same units). match each photon to the result of its absorption (or lack thereof) by an n=1 electon. photon/ energya 63b 51c 47d 36possible answersresultn=1 to n=2n=1 to n=3n=1 to n=4ionizationnot absorbed

1) n=1 -> n=2 : delta E = -5+11 = 6. The answer is D 
2) n=1 -> n=3 : delta E = -2+11 = 9. The answer is B 
3) n=1 -> n=4 : delta E = -1+11 = 10. No solution available 
4) n=1 -> infinity delta E = 11. The answer is A 
5) not absorbed would be C, as there is no transition with delta E of 8. 

The earths atmosphere is made up of nitrogen and oxygensolids turning into gases is called sublimation.

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.