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An electron in to be removed from the fi...

An electron in to be removed from the first energy level of hydrogen atom .How much energy is required for this purpose ?

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The correct Answer is:
A, B, C, D
`Delta E = E_(oo) - E_(1) = 0 - (- 1312 kJ mol^(-1)) = 1312 kJ mol^(-1)`
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CENGAGE CHEMISTRY-ATOMIC STRUCTURE-Concept Applicationexercise(4.2)
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