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[" 4.The energy of the electron in the f...

[" 4.The energy of the electron in the first orbit of He is - "],[871times10^(-20)J" .The energy of the electron in the first "],[" orbit of hydrogen would be "],[" (A) "-871.6times10^(-20)J],[" (B) "-435.8times10^(-20)J],[" (C) "-217.9times10^(-20)J],[" (D) "-108.9times10^(-20)J]

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