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20 September, 09:37

Which element has six energy levels?

A) rubidium (Rb)

B) cesium (Cs)

C) potassium (K)

D) sodium (Na)

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Answers (2)
  1. 20 September, 09:42
    0
    The energy level is the electron cloud number and only Cesium is large enough to have electrons in its sixth shell. Thus,

    the answer is B.
  2. 20 September, 09:53
    0
    Answer: B) cesium (Cs)
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