The electron in a hydrogen atom makes a transition from an excited state to the ground state. Which of the following statements is true?

  • A
    Its kinetic energy increases and its potential and total energies decrease.
  • B
    Its kinetic energy decreases,potential energy increases and its total energy remains the same.
  • C
    Its kinetic and total energies decrease and its potential energy increases.
  • D
    Its kinetic,potential and total energies decrease.

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