3. A positroniumn is an exotic atom consisting of an electron and its anti-particle, a positron, bou
問題詳情
3. A positroniumn is an exotic atom consisting of an electron and its anti-particle, a positron, bound together.Its ground state energy is (A) -3.2 eV (B) -6.8 eV (C) -9.4 eV (D) -11.4eV (E) -13.6 ev.