The discussion revolves around the electric potential energy change when an electron and a proton are brought together to form a hydrogen atom, specifically focusing on the calculation of EPEfinal - EPEinitial.
There is ongoing exploration of the concepts involved, with participants sharing their thoughts and calculations. Some have attempted to apply formulas, while others are still trying to understand the underlying principles. Guidance has been offered regarding the use of charge values and constants in the calculations.
Participants are working under the constraints of homework rules, which may limit the amount of direct assistance they can receive. There is also a focus on ensuring the correct application of constants and units in their calculations.
nckaytee said:An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together to form a hydrogen atom, in which the electron orbits the proton at an average distance of 5.43 * 10-11 m. What is EPEfinal - EPEinitial, which is the change in the electric potential energy?
I have no idea where to start
nckaytee said:In my notes I have [tex]\Delta E.P.E[/tex] of electron = q(Vb-Va) = (-e)(Vb-Va)
I am really not getting thisIm sorry, I might have something here... One minute..
Wikipedia said:e = –1.602176487(40) × 10–19C
p = 1.60217653(14)×10−19 C
nckaytee said:So, would it be...
(-1.6*10^19)(0 - 5.43 *10^-11)
nckaytee said:Okay, so I did PE = [(9*10^9)(-1.6*10^-19)(1.6*10^-19)] / 5.43*10^-11
My answer is right! -4.24 * 10^18
Thank you