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Question 1 of 5

Which of the following statements is true about the total energy of an electron in n^{t h} orbit?

(i) The negative sign in the expression of total energy shows that the electron is nucleus-bound.

(ii) Work needs to be done to pull an electron away from the nucleus.

(iii) The positive value of total energy indicates that the electron is bound to the nucleus.

A

Only (ii)

B

Only (iii)

C

Both (i) and (ii)

D

Only (i)

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