# What is the potential energy formula for an electron in hydrogen atom and how is it related to Total enrgy and kinetic enrgy? Also explain Why PE fromula of an e has -ve sign? :D mn experts

$PotentialEnergy=-\frac{Z{e}^{2}}{r}\phantom{\rule{0ex}{0ex}}Totalenergy=Kinetic+potential\phantom{\rule{0ex}{0ex}}E=-\frac{{Z}^{2}}{{n}^{2}}\times \frac{2{\pi}^{2}m{e}^{2}}{{h}^{2}}\phantom{\rule{0ex}{0ex}}E=-\frac{13.60}{{n}^{2}}$

Potential energy is negative which implies that the electron is bounded to the nucleus.

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