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The energy of the electron in a hydrogen...

The energy of the electron in a hydrogen atom has a negative sign for all possible orbits because

A

when the electron is attracted by the nucleus and is present in orbit n, the energy is emitted and its energy is lowered.

B

when the electron is attracted by the nucleus and is present in orbit n, the energy is absorbed and its energy is increased.

C

when the electron is repelled by the nucleus, the energy is released and its energy is lowered.

D

none of these.

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The correct Answer is:
A
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Which of the following is correct? (i) The energy of an electron in an H atom has a negative sign for all possible orbits. (ii) The enegry of an electron in the atom is lower than the enegry of a free electron at rest. (iii) A free electron at rest is an electron that is infinitely far away form the nucleus and is assigned the enegry value of zero. (iv) As the electron gets closer to the nucleus (as n decreases), E_(n) becomes larger in absolute value and more and more negative.

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