c2eloverever c2eloverever

21-11-2016
Chemistry

contestada

Which element has six energy levels?

A) rubidium (Rb)

B) cesium (Cs)

C) potassium (K)

D) sodium (Na)

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lschwarz lschwarz

21-11-2016

Answer: B) cesium (Cs)

Answer Link

scme1702 scme1702

21-11-2016

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.

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