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The energy of hydrogen atom in nth orbit is E n , then the energy in nth orbit of single ionised helium atom will be (a) 4E n (b) E n /4 (c) 2E n (d) E n /2



The energy of hydrogen atom in nth orbit is En, then the energy in nth orbit of single ionised helium atom will be


        (a)    4En   


(b)    En/4


        (c)    2En   


(d)    En/2


Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
9 years ago

(a)

We have

 

For helium

Z = 2. Hence requisite answer is 4En

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