The energy of the atom is [tex]8.2[/tex]×[tex]10^{-14} J[/tex].
These postulated were part of Bohr's atomic model:
1) Atoms' electrons move in specific circular orbits around the nucleus. The energy levels are the orbits. Less energy is expended in orbits that are near the nucleus than in orbits that are farthest from it.
2) When an electron moves from one energy level to another, its energy changes dramatically.
3) An electron's angular momentum as it circles the nucleus is quantized. As a result, the electron's angular momentum is a multiple of h/2π.
The energy of the H atom will be
[tex]E=mc^{2}\\m_e=9.109*10^{-31} Kg\\c=3(10^{8}) m/s\\E=9.109*10^{-31}(9)(10^{16})\\E= 8.2*10^{-14} J[/tex]
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