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 increase and its potential and total energies decreases
B
Its kinetic energy decrease , potantiaL energy increase and its total energies ramain the same
C
Its kineticand total energy decrease and its energies in creases
D
Its kinetic potential and total energies decreases
Text Solution
Verified by Experts
The correct Answer is:
A
As the electron comes nearer is the potential energy decreases `:' (- lambda Ze^(2))/(r ) = P.E and r decrease)` The K.E will increase `[:' K.E = (1)/(2)|P.E| = (1)/(2) (Kze^(2))/(r )]` The tatal energy decrease `[(T.E = (1)/(2)(Kze^(2))/(r )]`
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