The energy of an electron of hydrogen atom in 2nd main shell is equal – InterviewSolution

1.

The energy of an electron of hydrogen atom in 2nd main shell is equal to (a) – 13.6 eV atom-1(b) – 6.8 eV atom-1 (c) – 0.34 eV atom-1 (d) – 3.4 eV atom-1

Answer»

(d) – 3.4 eV atom^-1

Energy of an electron in 2nd main shell = (-13.6)Z²/ n²;

Z = 1, n = 2

E = -13.6 / 2²

= - 13.6/4

= -3.4 eV atom^-1

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