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When hydrogen atom is in its first excited level, its radius is (a) Four times its ground state radius (b) Twice (c) Same (d) Half



When hydrogen atom is in its first excited level, its radius is


        (a)    Four times its ground state radius


(b)    Twice


(c)    Same


(d)    Half


Grade:10

1 Answers

Amit Saxena
35 Points
8 years ago

(a)

         

Radius in ground state =   

Radius in first excited state =  

(\ n = 2)

Hence, radius of first excited state is foul'' times the radius in ground state.

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