Questions
An energy of 24.6 eV is required to remove one of the electrons from a neutral helium atom. The energy (in eV) required to remove both the electrons from a neutral helium atom is
detailed solution
Correct option is A
After the removal of first electron remaining atom will be hydrogen like atom.So energy required to remove second electron from the atom E=13.6Z2n2=13.6×2212=54.4eV∴ Total energy required =24.6+54.4=79eVTalk to our academic expert!
Similar Questions
In the following atoms and moleculates for the transition from n= 2 to n = 1, the spectral line of minimum wavelength will be produced by
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