When an electron in an atom goes from a lower to higher orbit its:
Correct answer: B. K.E decreases, P.E increases
- A. K.E increases, P.E decreases
- B. K.E decreases, P.E increases
- C. K.E increase, P.E increase
- D. K.E decrease, P.E decreases
Explanation
The explanation for this question is given below: When an electron goes from a lower orbit to a higher orbit, it absorbs energy to do so. This increase in energy means that its kinetic energy (K.E) increases because it is now moving faster in the higher orbit.At the same time, the potential energy (P.E) of the electron also increases because it is further from the nucleus in the higher orbit, and electrons in outer orbits have higher potential energy due to their greater distance from the nucleus.So, option (b) "K.E increases, P.E increases" is the correct choice.
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