Positronium is just like a H-atom with the proton replaced by the positively charged anti-particle of the electron (called the positron which is as massive as the electron). What would be the ground state energy of positronium?
Positronium is just like a H-atom with the proton replaced by the positively charged anti-particle of the electron (called the positron which is as massive as the electron). What would be the ground state energy of positronium?
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1 Answer
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This is a Short Answer Type Questions as classified in NCERT Exemplar
Explanation- The total energy of the electron in the stationary states of the hydrogen atom is given by En = -
where signs are as usual and the m that occurs in the Bohr formula is the reduced mass of
electron and proton. Also, the total energy of the electron in the ground state of the
hydrogen atom is−13.6 eV. For H-atom reduced mass me . Whereas for positronium, the
reduced mass is m=me/2
Hence, the total energy of the electron in the ground state of the positronium atom is
-13.6/2=-6.8eV
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